/*!
 * bootstrap-fileinput v5.2.6
 * http://plugins.krajee.com/file-input
 *
 * Author: Kartik Visweswaran
 * Copyright: 2014 - 2021, Kartik Visweswaran, Krajee.com
 *
 * Licensed under the BSD-3-Clause
 * https://github.com/kartik-v/bootstrap-fileinput/blob/master/LICENSE.md
 */
(function (factory) {
'use strict';
if (typeof define === 'function' && define.amd) {
define(['jquery'], factory);
} else if (typeof module === 'object' && typeof module.exports === 'object') {
factory(require('jquery'));
} else {
  factory(window.jQuery);
  }
}(function ($) {
'use strict';

$.fn.fileinputLocales = {};
$.fn.fileinputThemes = {};

if (!$.fn.fileinputBsVersion) {
    $.fn.fileinputBsVersion = (window.bootstrap && window.bootstrap.Alert && window.bootstrap.Alert.VERSION) ||
(window.Alert && window.Alert.VERSION) || '3.x.x';
}

String.prototype.setTokens = function (replacePairs) {
    var str = this.toString(), key, re;
for (key in replacePairs) {
if (replacePairs.hasOwnProperty(key)) {
    re = new RegExp('\{' + key + '\}', 'g');
    str = str.replace(re, replacePairs[key]);
}
}
return str;
};

if (!Array.prototype.flatMap) { // polyfill flatMap
                                   Array.prototype.flatMap = function (lambda) {
    return [].concat(this.map(lambda));
};
}

var $h, FileInput;

// fileinput helper object for all global variables and internal helper methods
    $h = {
FRAMES: '.kv-preview-thumb',
SORT_CSS: 'file-sortable',
INIT_FLAG: 'init-',
SCRIPT_SRC: document && document.currentScript && document.currentScript.src || null,
                                                  OBJECT_PARAMS: '<param name="controller" value="true" />\n' +
'<param name="allowFullScreen" value="true" />\n' +
'<param name="allowScriptAccess" value="always" />\n' +
'<param name="autoPlay" value="false" />\n' +
'<param name="autoStart" value="false" />\n' +
'<param name="quality" value="high" />\n',
DEFAULT_PREVIEW: '<div class="file-preview-other">\n' +
'<span class="{previewFileIconClass}">{previewFileIcon}</span>\n' +
'</div>',
MODAL_ID: 'kvFileinputModal',
MODAL_EVENTS: ['show', 'shown', 'hide', 'hidden', 'loaded'],
logMessages: {
    ajaxError: '{status}: {error}. Error Details: {text}.',
    badDroppedFiles: 'Error scanning dropped files!',
    badExifParser: 'Error loading the piexif.js library. {details}',
    badInputType: 'The input "type" must be set to "file" for initializing the "bootstrap-fileinput" plugin.',
    exifWarning: 'To avoid this warning, either set "autoOrientImage" to "false" OR ensure you have loaded ' +
    'the "piexif.js" library correctly on your page before the "fileinput.js" script.',
    invalidChunkSize: 'Invalid upload chunk size: "{chunkSize}". Resumable uploads are disabled.',
    invalidThumb: 'Invalid thumb frame with id: "{id}".',
    noResumableSupport: 'The browser does not support resumable or chunk uploads.',
    noUploadUrl: 'The "uploadUrl" is not set. Ajax uploads and resumable uploads have been disabled.',
    retryStatus: 'Retrying upload for chunk # {chunk} for {filename}... retry # {retry}.',
    chunkQueueError: 'Could not push task to ajax pool for chunk index # {index}.',
    resumableMaxRetriesReached: 'Maximum resumable ajax retries ({n}) reached.',
    resumableRetryError: 'Could not retry the resumable request (try # {n})... aborting.',
    resumableAborting: 'Aborting / cancelling the resumable request.',
    resumableRequestError: 'Error processing resumable request. {msg}'

},
objUrl: window.URL || window.webkitURL,
getZoomPlaceholder: function () { // used to prevent 404 errors in URL parsing
var src = $h.SCRIPT_SRC, srcPath, zoomVar = '?kvTemp__2873389129__=';
if (!src) {
    return zoomVar;
}
srcPath = src.substring(0, src.lastIndexOf("/"));
return srcPath.substring(0, srcPath.lastIndexOf("/") + 1) + 'img/loading.gif' + zoomVar;
},
isBs: function (ver) {
    var chk = $.trim(($.fn.fileinputBsVersion || '') + '');
    ver = parseInt(ver, 10);
if (!chk) {
    return ver === 4;
}
return ver === parseInt(chk.charAt(0), 10);

},
defaultButtonCss: function (fill) {
    return 'btn-default btn-' + (fill ? '' : 'outline-') + 'secondary';
},
now: function () {
    return new Date().getTime();
},
round: function (num) {
    num = parseFloat(num);
    return isNaN(num) ? 0 : Math.floor(Math.round(num));
},
getArray: function (obj) {
    var i, arr = [], len = obj && obj.length || 0;
    for (i = 0; i < len; i++) {
    arr.push(obj[i]);
}
return arr;
},
getFileRelativePath: function (file) {
/** @namespace file.relativePath */
/** @namespace file.webkitRelativePath */
    return String(file.newPath || file.relativePath || file.webkitRelativePath || $h.getFileName(file) || null);

},
getFileId: function (file, generateFileId) {
    var relativePath = $h.getFileRelativePath(file);
if (typeof generateFileId === 'function') {
    return generateFileId(file);
}
if (!file) {
    return null;
}
if (!relativePath) {
    return null;
}
return (file.size + '_' + encodeURIComponent(relativePath).replace(/%/g, '_'));
},
getFrameSelector: function (id, selector) {
    selector = selector || '';
    return '[id="' + id + '"]' + selector;
},
getZoomSelector: function (id, selector) {
    return $h.getFrameSelector('zoom-' + id, selector);
},
getFrameElement: function ($element, id, selector) {
    return $element.find($h.getFrameSelector(id, selector));
},
getZoomElement: function ($element, id, selector) {
    return $element.find($h.getZoomSelector(id, selector));
},
getElapsed: function (seconds) {
var delta = seconds, out = '', result = {}, structure = {
    year: 31536000,
    month: 2592000,
    week: 604800, // uncomment row to ignore
    day: 86400,   // feel free to add your own row
    hour: 3600,
    minute: 60,
    second: 1
};
$h.getObjectKeys(structure).forEach(function (key) {
    result[key] = Math.floor(delta / structure[key]);
    delta -= result[key] * structure[key];
});
$.each(result, function (key, value) {
if (value > 0) {
    out += (out ? ' ' : '') + value + key.substring(0, 1);
}
});
return out;
},
debounce: function (func, delay) {
    var inDebounce;
return function () {
    var args = arguments, context = this;
clearTimeout(inDebounce);
inDebounce = setTimeout(function () {
    func.apply(context, args);
}, delay);
};
},
stopEvent: function (e) {
    e.stopPropagation();
    e.preventDefault();
},
getFileName: function (file) {
/** @namespace file.fileName */
    return file ? (file.fileName || file.name || '') : ''; // some confusion in different versions of Firefox
},
createObjectURL: function (data) {
if ($h.objUrl && $h.objUrl.createObjectURL && data) {
    return $h.objUrl.createObjectURL(data);
}
return '';
},
revokeObjectURL: function (data) {
if ($h.objUrl && $h.objUrl.revokeObjectURL && data) {
    $h.objUrl.revokeObjectURL(data);
}
},
compare: function (input, str, exact) {
    return input !== undefined && (exact ? input === str : input.match(str));
},
isIE: function (ver) {
    var div, status;
// check for IE versions < 11
if (navigator.appName !== 'Microsoft Internet Explorer') {
    return false;
}
if (ver === 10) {
    return new RegExp('msie\\s' + ver, 'i').test(navigator.userAgent);
}
div = document.createElement('div');
div.innerHTML = '<!--[if IE ' + ver + ']> <i></i> <![endif]-->';
status = div.getElementsByTagName('i').length;
document.body.appendChild(div);
div.parentNode.removeChild(div);
return status;
},
canOrientImage: function ($el) {
var $img = $(document.createElement('img')).css({width: '1px', height: '1px'}).insertAfter($el),
flag = $img.css('image-orientation');
$img.remove();
return !!flag;
},
canAssignFilesToInput: function () {
    var input = document.createElement('input');
try {
    input.type = 'file';
    input.files = null;
    return true;
} catch (err) {
    return false;
}
},
getDragDropFolders: function (items) {
    var i, item, len = items ? items.length : 0, folders = 0;
if (len > 0 && items[0].webkitGetAsEntry()) {
    for (i = 0; i < len; i++) {
    item = items[i].webkitGetAsEntry();
if (item && item.isDirectory) {
    folders++;
}
}
}
return folders;
},
initModal: function ($modal) {
    var $body = $('body');
if ($body.length) {
    $modal.appendTo($body);
}
},
isFunction: function (v) {
    return typeof v === 'function';
},
isEmpty: function (value, trim) {
if (value === undefined || value === null || value === '') {
    return true;
}
if ($h.isString(value) && trim) {
    return $.trim(value) === '';
}
if ($h.isArray(value)) {
    return value.length === 0;
}
if ($.isPlainObject(value) && $.isEmptyObject(value)) {
    return true
}
return false;
},
isArray: function (a) {
    return Array.isArray(a) || Object.prototype.toString.call(a) === '[object Array]';
},
isString: function (a) {
    return Object.prototype.toString.call(a) === '[object String]';
},
ifSet: function (needle, haystack, def) {
    def = def || '';
    return (haystack && typeof haystack === 'object' && needle in haystack) ? haystack[needle] : def;
},
cleanArray: function (arr) {
if (!(arr instanceof Array)) {
    arr = [];
}
return arr.filter(function (e) {
    return (e !== undefined && e !== null);
});
},
spliceArray: function (arr, index, reverseOrder) {
    var i, j = 0, out = [], newArr;
if (!(arr instanceof Array)) {
    return [];
}
newArr = $.extend(true, [], arr);
if (reverseOrder) {
    newArr.reverse();
}
for (i = 0; i < newArr.length; i++) {
if (i !== index) {
    out[j] = newArr[i];
    j++;
}
}
if (reverseOrder) {
    out.reverse();
}
return out;
},
getNum: function (num, def) {
    def = def || 0;
if (typeof num === 'number') {
    return num;
}
if (typeof num === 'string') {
    num = parseFloat(num);
}
return isNaN(num) ? def : num;
},
hasFileAPISupport: function () {
    return !!(window.File && window.FileReader);
},
hasDragDropSupport: function () {
    var div = document.createElement('div');
/** @namespace div.draggable */
/** @namespace div.ondragstart */
/** @namespace div.ondrop */
    return !$h.isIE(9) &&
    (div.draggable !== undefined || (div.ondragstart !== undefined && div.ondrop !== undefined));
},
hasFileUploadSupport: function () {
    return $h.hasFileAPISupport() && window.FormData;
},
hasBlobSupport: function () {
try {
    return !!window.Blob && Boolean(new Blob());
} catch (e) {
    return false;
}
},
hasArrayBufferViewSupport: function () {
try {
    return new Blob([new Uint8Array(100)]).size === 100;
} catch (e) {
    return false;
}
},
hasResumableUploadSupport: function () {
/** @namespace Blob.prototype.webkitSlice */
/** @namespace Blob.prototype.mozSlice */
    return $h.hasFileUploadSupport() && $h.hasBlobSupport() && $h.hasArrayBufferViewSupport() &&
    (!!Blob.prototype.webkitSlice || !!Blob.prototype.mozSlice || !!Blob.prototype.slice || false);
},
dataURI2Blob: function (dataURI) {
    var BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder ||
    window.MSBlobBuilder, canBlob = $h.hasBlobSupport(), byteStr, arrayBuffer, intArray, i, mimeStr, bb,
    canProceed = (canBlob || BlobBuilder) && window.atob && window.ArrayBuffer && window.Uint8Array;
if (!canProceed) {
    return null;
}
if (dataURI.split(',')[0].indexOf('base64') >= 0) {
    byteStr = atob(dataURI.split(',')[1]);
} else {
      byteStr = decodeURIComponent(dataURI.split(',')[1]);
  }
arrayBuffer = new ArrayBuffer(byteStr.length);
intArray = new Uint8Array(arrayBuffer);
for (i = 0; i < byteStr.length; i += 1) {
    intArray[i] = byteStr.charCodeAt(i);
}
mimeStr = dataURI.split(',')[0].split(':')[1].split(';')[0];
if (canBlob) {
return new Blob([$h.hasArrayBufferViewSupport() ? intArray : arrayBuffer], {type: mimeStr});
}
bb = new BlobBuilder();
bb.append(arrayBuffer);
return bb.getBlob(mimeStr);
},
arrayBuffer2String: function (buffer) {
if (window.TextDecoder) {
    return new TextDecoder('utf-8').decode(buffer);
}
var array = Array.prototype.slice.apply(new Uint8Array(buffer)), out = '', i = 0, len, c, char2, char3;
len = array.length;
while (i < len) {
    c = array[i++];
switch (c >> 4) { // jshint ignore:line
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
// 0xxxxxxx
out += String.fromCharCode(c);
    break;
    case 12:
    case 13:
// 110x xxxx   10xx xxxx
char2 = array[i++];
    out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F)); // jshint ignore:line
break;
    case 14:
    // 1110 xxxx  10xx xxxx  10xx xxxx
    char2 = array[i++];
    char3 = array[i++];
    out += String.fromCharCode(((c & 0x0F) << 12) | // jshint ignore:line
((char2 & 0x3F) << 6) |  // jshint ignore:line
((char3 & 0x3F) << 0)); // jshint ignore:line
break;
}
}
return out;
},
isHtml: function (str) {
    var a = document.createElement('div');
    a.innerHTML = str;
    for (var c = a.childNodes, i = c.length; i--;) {
if (c[i].nodeType === 1) {
    return true;
}
}
return false;
},
isSvg: function (str) {
    return str.match(/^\s*<\?xml/i) && (str.match(/<!DOCTYPE svg/i) || str.match(/<svg/i));
},
getMimeType: function (signature, contents, type) {
switch (signature) {
    case 'ffd8ffe0':
    case 'ffd8ffe1':
case 'ffd8ffe2':
return 'image/jpeg';
    case '89504e47':
    return 'image/png';
    case '47494638':
    return 'image/gif';
    case '49492a00':
    return 'image/tiff';
    case '52494646':
    return 'image/webp';
    case '66747970':
    return 'video/3gp';
    case '4f676753':
    return 'video/ogg';
    case '1a45dfa3':
    return 'video/mkv';
    case '000001ba':
    case '000001b3':
return 'video/mpeg';
    case '3026b275':
    return 'video/wmv';
    case '25504446':
    return 'application/pdf';
    case '25215053':
    return 'application/ps';
    case '504b0304':
    case '504b0506':
case '504b0508':
return 'application/zip';
    case '377abcaf':
    return 'application/7z';
    case '75737461':
    return 'application/tar';
    case '7801730d':
    return 'application/dmg';
default:
switch (signature.substring(0, 6)) {
    case '435753':
    return 'application/x-shockwave-flash';
    case '494433':
    return 'audio/mp3';
    case '425a68':
    return 'application/bzip';
default:
switch (signature.substring(0, 4)) {
    case '424d':
    return 'image/bmp';
    case 'fffb':
    return 'audio/mp3';
    case '4d5a':
    return 'application/exe';
    case '1f9d':
    case '1fa0':
return 'application/zip';
    case '1f8b':
    return 'application/gzip';
    default:
    return contents && !contents.match(
    /[^\u0000-\u007f]/) ? 'application/text-plain' : type;
}
}
}
},
addCss: function ($el, css) {
    $el.removeClass(css).addClass(css);
},
getElement: function (options, param, value) {
    return ($h.isEmpty(options) || $h.isEmpty(options[param])) ? value : $(options[param]);
},
createElement: function (str, tag) {
    tag = tag || 'div';
    return $($.parseHTML('<' + tag + '>' + str + '</' + tag + '>'));
},
uniqId: function () {
    return (new Date().getTime() + Math.floor(Math.random() * Math.pow(10, 15))).toString(36);
},
cspBuffer: {
CSP_ATTRIB: 'data-csp-01928735', // a randomly named temporary attribute to store the CSP elem id
                                    domElementsStyles: {},
stash: function (htmlString) {
    var self = this, outerDom = $.parseHTML('<div>' + htmlString + '</div>'), $el = $(outerDom);
$el.find('[style]').each(function (key, elem) {
var $elem = $(elem), styleDeclaration = $elem[0].style, id = $h.uniqId(), styles = {};
if (styleDeclaration && styleDeclaration.length) {
$(styleDeclaration).each(function () {
    styles[this] = styleDeclaration[this];
});
self.domElementsStyles[id] = styles;
$elem.removeAttr('style').attr(self.CSP_ATTRIB, id);
}
});
$el.filter('*').removeAttr('style');                   // make sure all style attr are removed
                                                          var values = Object.values ? Object.values(outerDom) : Object.keys(outerDom).map(function (itm) {
    return outerDom[itm];
});
return values.flatMap(function (elem) {
    return elem.innerHTML;
}).join('');
},
apply: function (domElement) {
    var self = this, $el = $(domElement);
$el.find('[' + self.CSP_ATTRIB + ']').each(function (key, elem) {
    var $elem = $(elem), id = $elem.attr(self.CSP_ATTRIB), styles = self.domElementsStyles[id];
if (styles) {
    $elem.css(styles);
}
$elem.removeAttr(self.CSP_ATTRIB);
});
self.domElementsStyles = {};
}
},
setHtml: function ($elem, htmlString) {
    var buf = $h.cspBuffer;
    $elem.html(buf.stash(htmlString));
    buf.apply($elem);
    return $elem;
},
htmlEncode: function (str, undefVal) {
if (str === undefined) {
    return undefVal || null;
}
return str.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;')
.replace(/'/g, '&apos;');
},
replaceTags: function (str, tags) {
    var out = str;
if (!tags) {
    return out;
}
$.each(tags, function (key, value) {
if (typeof value === 'function') {
    value = value();
}
out = out.split(key).join(value);
});
return out;
},
cleanMemory: function ($thumb) {
    var data = $thumb.is('img') ? $thumb.attr('src') : $thumb.find('source').attr('src');
    $h.revokeObjectURL(data);
},
findFileName: function (filePath) {
    var sepIndex = filePath.lastIndexOf('/');
if (sepIndex === -1) {
    sepIndex = filePath.lastIndexOf('\\');
}
return filePath.split(filePath.substring(sepIndex, sepIndex + 1)).pop();
},
checkFullScreen: function () {
    return document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement ||
    document.msFullscreenElement;
},
toggleFullScreen: function (maximize) {
    var doc = document, de = doc.documentElement, isFullScreen = $h.checkFullScreen();
if (de && maximize && !isFullScreen) {
if (de.requestFullscreen) {
    de.requestFullscreen();
} else {
if (de.msRequestFullscreen) {
    de.msRequestFullscreen();
} else {
if (de.mozRequestFullScreen) {
    de.mozRequestFullScreen();
} else {
if (de.webkitRequestFullscreen) {
    de.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
}
}
}
}
} else {
if (isFullScreen) {
if (doc.exitFullscreen) {
    doc.exitFullscreen();
} else {
if (doc.msExitFullscreen) {
    doc.msExitFullscreen();
} else {
if (doc.mozCancelFullScreen) {
    doc.mozCancelFullScreen();
} else {
if (doc.webkitExitFullscreen) {
    doc.webkitExitFullscreen();
}
}
}
}
}
}
},
moveArray: function (arr, oldIndex, newIndex, reverseOrder) {
    var newArr = $.extend(true, [], arr);
if (reverseOrder) {
    newArr.reverse();
}
if (newIndex >= newArr.length) {
    var k = newIndex - newArr.length;
while ((k--) + 1) {
    newArr.push(undefined);
}
}
newArr.splice(newIndex, 0, newArr.splice(oldIndex, 1)[0]);
if (reverseOrder) {
    newArr.reverse();
}
return newArr;
},
closeButton: function (css) {
    css = ($h.isBs(5) ? 'btn-close' : 'close') + (css ? ' ' + css : '');
    return '<button type="button" class="' + css + '" aria-label="Close">\n' +
    ($h.isBs(5) ? '' : '  <span aria-hidden="true">&times;</span>\n') +
'</button>';
},
getRotation: function (value) {
switch (value) {
    case 2:
    return 'rotateY(180deg)';
    case 3:
    return 'rotate(180deg)';
    case 4:
    return 'rotate(180deg) rotateY(180deg)';
    case 5:
    return 'rotate(270deg) rotateY(180deg)';
    case 6:
    return 'rotate(90deg)';
    case 7:
    return 'rotate(90deg) rotateY(180deg)';
    case 8:
    return 'rotate(270deg)';
    default:
            return '';
}
},
setTransform: function (el, val) {
if (!el) {
    return;
}
el.style.transform = val;
el.style.webkitTransform = val;
el.style['-moz-transform'] = val;
el.style['-ms-transform'] = val;
el.style['-o-transform'] = val;
},
getObjectKeys: function (obj) {
    var keys = [];
if (obj) {
$.each(obj, function (key) {
    keys.push(key);
});
}
return keys;
},
getObjectSize: function (obj) {
    return $h.getObjectKeys(obj).length;
},
/**
         * Small dependency injection for the task manager
         * https://gist.github.com/fearphage/4341799
         */
whenAll: function (array) {
    var s = [].slice, resolveValues = arguments.length === 1 && $h.isArray(array) ? array : s.call(arguments),
deferred = $.Deferred(), i, failed = 0, value, length = resolveValues.length,
remaining = length, rejectContexts, rejectValues, resolveContexts, updateFunc;
    rejectContexts = rejectValues = resolveContexts = Array(length);
updateFunc = function (index, contexts, values) {
return function () {
if (values !== resolveValues) {
    failed++;
}
deferred.notifyWith(contexts[index] = this, values[index] = s.call(arguments));
if (!(--remaining)) {
    deferred[(!failed ? 'resolve' : 'reject') + 'With'](contexts, values);
}
};
};
for (i = 0; i < length; i++) {
if ((value = resolveValues[i]) && $.isFunction(value.promise)) {
    value.promise()
    .done(updateFunc(i, resolveContexts, resolveValues))
    .fail(updateFunc(i, rejectContexts, rejectValues));
} else {
      deferred.notifyWith(this, value);
      --remaining;
  }
}
if (!remaining) {
    deferred.resolveWith(resolveContexts, resolveValues);
}
return deferred.promise();
}
};
FileInput = function (element, options) {
    var self = this;
    self.$element = $(element);
    self.$parent = self.$element.parent();
if (!self._validate()) {
    return;
}
self.isPreviewable = $h.hasFileAPISupport();
self.isIE9 = $h.isIE(9);
self.isIE10 = $h.isIE(10);
if (self.isPreviewable || self.isIE9) {
    self._init(options);
    self._listen();
}
self.$element.removeClass('file-loading');
};

FileInput.prototype = {
constructor: FileInput,
_cleanup: function () {
    var self = this;
    self.reader = null;
    self.clearFileStack();
    self.fileBatchCompleted = true;
    self.isError = false;
    self.isDuplicateError = false;
    self.isPersistentError = false;
    self.cancelling = false;
    self.paused = false;
    self.lastProgress = 0;
    self._initAjax();
},
_isAborted: function () {
    var self = this;
    return self.cancelling || self.paused;
},
_initAjax: function () {
var self = this, tm = self.taskManager = {
pool: {},
addPool: function (id) {
    return (tm.pool[id] = new tm.TasksPool(id));
},
getPool: function (id) {
    return tm.pool[id];
},
addTask: function (id, logic) { // add standalone task directly from task manager
return new tm.Task(id, logic);
},
TasksPool: function (id) {
    var tp = this;
    tp.id = id;
    tp.cancelled = false;
    tp.cancelledDeferrer = $.Deferred();
tp.tasks = {};
tp.addTask = function (id, logic) {
    return (tp.tasks[id] = new tm.Task(id, logic));
};
tp.size = function () {
    return $h.getObjectSize(tp.tasks);
};
tp.run = function (maxThreads) {
var i = 0, failed = false, task, tasksList = $h.getObjectKeys(tp.tasks).map(function (key) {
    return tp.tasks[key];
}), tasksDone = [], deferred = $.Deferred(), enqueue, callback;

if (tp.cancelled) {
    tp.cancelledDeferrer.resolve();
    return deferred.reject();
}
// if run all at once
   if (!maxThreads) {
var tasksDeferredList = $h.getObjectKeys(tp.tasks).map(function (key) {
    return tp.tasks[key].deferred;
});
// when all are done
                            $h.whenAll(tasksDeferredList).done(function () {
    var argv = $h.getArray(arguments);
if (!tp.cancelled) {
    deferred.resolve.apply(null, argv);
    tp.cancelledDeferrer.reject();
} else {
      deferred.reject.apply(null, argv);
      tp.cancelledDeferrer.resolve();
  }
}).fail(function () {
    var argv = $h.getArray(arguments);
    deferred.reject.apply(null, argv);
if (!tp.cancelled) {
    tp.cancelledDeferrer.reject();
} else {
      tp.cancelledDeferrer.resolve();
  }
});
// run all tasks
                            $.each(tp.tasks, function (id) {
    task = tp.tasks[id];
    task.run();
});
return deferred;
}
enqueue = function (task) {
$.when(task.deferred)
.fail(function () {
    failed = true;
    callback.apply(null, arguments);
})
.always(callback);
};
callback = function () {
    var argv = $h.getArray(arguments);
// notify a task just ended
deferred.notify(argv);
    tasksDone.push(argv);
if (tp.cancelled) {
    deferred.reject.apply(null, tasksDone);
    tp.cancelledDeferrer.resolve();
    return;
}
if (tasksDone.length === tp.size()) {
if (failed) {
    deferred.reject.apply(null, tasksDone);
} else {
      deferred.resolve.apply(null, tasksDone);
  }
}
// if there are any tasks remaining
   if (tasksList.length) {
    task = tasksList.shift();
enqueue(task);
    task.run();
}
};
// run the first "maxThreads" tasks
                              while (tasksList.length && i++ < maxThreads) {
    task = tasksList.shift();
enqueue(task);
    task.run();
}
return deferred;
};
tp.cancel = function () {
    tp.cancelled = true;
    return tp.cancelledDeferrer;
};
},
Task: function (id, logic) {
    var tk = this;
    tk.id = id;
    tk.deferred = $.Deferred();
    tk.logic = logic;
    tk.context = null;
tk.run = function () {
    var argv = $h.getArray(arguments);
    argv.unshift(tk.deferred);     // add deferrer as first argument
logic.apply(tk.context, argv); // run task
return tk.deferred;            // return deferrer
};
tk.runWithContext = function (context) {
    tk.context = context;
    return tk.run();
};
}
};
self.ajaxQueue = [];
self.ajaxRequests = [];
self.ajaxAborted = false;
},
_init: function (options, refreshMode) {
    var self = this, f, $el = self.$element, $cont, t, tmp;
    self.options = options;
    self.zoomPlaceholder = $h.getZoomPlaceholder();
    self.canOrientImage = $h.canOrientImage($el);
$.each(options, function (key, value) {
switch (key) {
    case 'minFileCount':
    case 'maxFileCount':
case 'maxTotalFileCount':
case 'minFileSize':
case 'maxFileSize':
case 'maxFilePreviewSize':
case 'resizeQuality':
case 'resizeIfSizeMoreThan':
case 'progressUploadThreshold':
case 'initialPreviewCount':
case 'zoomModalHeight':
case 'minImageHeight':
case 'maxImageHeight':
case 'minImageWidth':
case 'maxImageWidth':
case 'bytesToKB':
self[key] = $h.getNum(value);
    break;
    default:
    self[key] = value;
    break;
}
});
if (!self.bytesToKB || self.bytesToKB <= 0) {
    self.bytesToKB = 1024;
}
if (self.errorCloseButton === undefined) {
    self.errorCloseButton = $h.closeButton('kv-error-close' + ($h.isBs(5) ? '  float-end' : ''));
}
if (self.maxTotalFileCount > 0 && self.maxTotalFileCount < self.maxFileCount) {
    self.maxTotalFileCount = self.maxFileCount;
}
if (self.rtl) { // swap buttons for rtl
tmp = self.previewZoomButtonIcons.prev;
    self.previewZoomButtonIcons.prev = self.previewZoomButtonIcons.next;
    self.previewZoomButtonIcons.next = tmp;
}
// validate chunk threads to not exceed maxAjaxThreads
   if (!isNaN(self.maxAjaxThreads) && self.maxAjaxThreads < self.resumableUploadOptions.maxThreads) {
    self.resumableUploadOptions.maxThreads = self.maxAjaxThreads;
}
self._initFileManager();
if (typeof self.autoOrientImage === 'function') {
    self.autoOrientImage = self.autoOrientImage();
}
if (typeof self.autoOrientImageInitial === 'function') {
    self.autoOrientImageInitial = self.autoOrientImageInitial();
}
if (!refreshMode) {
    self._cleanup();
}
self.duplicateErrors = [];
self.$form = $el.closest('form');
self._initTemplateDefaults();
self.uploadFileAttr = !$h.isEmpty($el.attr('name')) ? $el.attr('name') : 'file_data';
t = self._getLayoutTemplate('progress');
self.progressTemplate = t.replace('{class}', self.progressClass);
self.progressInfoTemplate = t.replace('{class}', self.progressInfoClass);
self.progressPauseTemplate = t.replace('{class}', self.progressPauseClass);
self.progressCompleteTemplate = t.replace('{class}', self.progressCompleteClass);
self.progressErrorTemplate = t.replace('{class}', self.progressErrorClass);
self.isDisabled = $el.attr('disabled') || $el.attr('readonly');
if (self.isDisabled) {
    $el.attr('disabled', true);
}
self.isClickable = self.browseOnZoneClick && self.showPreview &&
(self.dropZoneEnabled || !$h.isEmpty(self.defaultPreviewContent));
self.isAjaxUpload = $h.hasFileUploadSupport() && !$h.isEmpty(self.uploadUrl);
self.dropZoneEnabled = $h.hasDragDropSupport() && self.dropZoneEnabled;
if (!self.isAjaxUpload) {
    self.dropZoneEnabled = self.dropZoneEnabled && $h.canAssignFilesToInput();
}
self.slug = typeof options.slugCallback === 'function' ? options.slugCallback : self._slugDefault;
self.mainTemplate = self.showCaption ? self._getLayoutTemplate('main1') : self._getLayoutTemplate('main2');
self.captionTemplate = self._getLayoutTemplate('caption');
self.previewGenericTemplate = self._getPreviewTemplate('generic');
if (!self.imageCanvas && self.resizeImage && (self.maxImageWidth || self.maxImageHeight)) {
    self.imageCanvas = document.createElement('canvas');
    self.imageCanvasContext = self.imageCanvas.getContext('2d');
}
if ($h.isEmpty($el.attr('id'))) {
    $el.attr('id', $h.uniqId());
}
self.namespace = '.fileinput_' + $el.attr('id').replace(/-/g, '_');
if (self.$container === undefined) {
    self.$container = self._createContainer();
} else {
      self._refreshContainer();
  }
$cont = self.$container;
self.$dropZone = $cont.find('.file-drop-zone');
self.$progress = $cont.find('.kv-upload-progress');
self.$btnUpload = $cont.find('.fileinput-upload');
self.$captionContainer = $h.getElement(options, 'elCaptionContainer', $cont.find('.file-caption'));
self.$caption = $h.getElement(options, 'elCaptionText', $cont.find('.file-caption-name'));
if (!$h.isEmpty(self.msgPlaceholder)) {
    f = $el.attr('multiple') ? self.filePlural : self.fileSingle;
    self.$caption.attr('placeholder', self.msgPlaceholder.replace('{files}', f));
}
self.$captionIcon = self.$captionContainer.find('.file-caption-icon');
self.$previewContainer = $h.getElement(options, 'elPreviewContainer', $cont.find('.file-preview'));
self.$preview = $h.getElement(options, 'elPreviewImage', $cont.find('.file-preview-thumbnails'));
self.$previewStatus = $h.getElement(options, 'elPreviewStatus', $cont.find('.file-preview-status'));
self.$errorContainer = $h.getElement(options, 'elErrorContainer',
self.$previewContainer.find('.kv-fileinput-error'));
self._validateDisabled();
if (!$h.isEmpty(self.msgErrorClass)) {
    $h.addCss(self.$errorContainer, self.msgErrorClass);
}
if (!refreshMode) {
    self._resetErrors();
    self.$errorContainer.hide();
    self.previewInitId = 'thumb-' + $el.attr('id');
    self._initPreviewCache();
    self._initPreview(true);
    self._initPreviewActions();
if (self.$parent.hasClass('file-loading')) {
    self.$container.insertBefore(self.$parent);
    self.$parent.remove();
}
} else {
if (!self._errorsExist()) {
    self.$errorContainer.hide();
}
}
self._setFileDropZoneTitle();
if ($el.attr('disabled')) {
    self.disable();
}
self._initZoom();
if (self.hideThumbnailContent) {
    $h.addCss(self.$preview, 'hide-content');
}
},
_initFileManager: function () {
    var self = this;
    self.uploadStartTime = $h.now();
self.fileManager = {
stack: {},
filesProcessed: [],
errors: [],
loadedImages: {},
totalImages: 0,
totalFiles: null,
totalSize: null,
uploadedSize: 0,
stats: {},
bpsLog: [],
bps: 0,
initStats: function (id) {
var data = {started: $h.now()};
if (id) {
    self.fileManager.stats[id] = data;
} else {
      self.fileManager.stats = data;
  }
},
getUploadStats: function (id, loaded, total) {
    var fm = self.fileManager,
    started = id ? fm.stats[id] && fm.stats[id].started || $h.now() : self.uploadStartTime,
elapsed = ($h.now() - started) / 1000, bps = Math.ceil(elapsed ? loaded / elapsed : 0),
pendingBytes = total - loaded, out, delay = fm.bpsLog.length ? self.bitrateUpdateDelay : 0;
setTimeout(function () {
    var i, j = 0, n = 0, len, beg;
    fm.bpsLog.push(bps);
fm.bpsLog.sort(function (a, b) {
    return a - b;
});
len = fm.bpsLog.length;
beg = len > 10 ? len - 10 : Math.ceil(len / 2);
for (i = len; i > beg; i--) {
    n = parseFloat(fm.bpsLog[i]);
    j++;
}
fm.bps = (j > 0 ? n / j : 0) * 64;
}, delay);
out = {
    fileId: id,
    started: started,
    elapsed: elapsed,
    loaded: loaded,
    total: total,
    bps: fm.bps,
    bitrate: self._getSize(fm.bps, self.bitRateUnits),
    pendingBytes: pendingBytes
};
if (id) {
    fm.stats[id] = out;
} else {
      fm.stats = out;
  }
return out;
},
exists: function (id) {
    return $.inArray(id, self.fileManager.getIdList()) !== -1;
},
count: function () {
    return self.fileManager.getIdList().length;
},
total: function () {
    var fm = self.fileManager;
if (!fm.totalFiles) {
    fm.totalFiles = fm.count();
}
return fm.totalFiles;
},
getTotalSize: function () {
    var fm = self.fileManager;
if (fm.totalSize) {
    return fm.totalSize;
}
fm.totalSize = 0;
$.each(self.getFileStack(), function (id, f) {
    var size = parseFloat(f.size);
    fm.totalSize += isNaN(size) ? 0 : size;
});
return fm.totalSize;
},
add: function (file, id) {
if (!id) {
    id = self.fileManager.getId(file);
}
if (!id) {
    return;
}
self.fileManager.stack[id] = {
    file: file,
    name: $h.getFileName(file),
    relativePath: $h.getFileRelativePath(file),
    size: file.size,
    nameFmt: self._getFileName(file, ''),
    sizeFmt: self._getSize(file.size)
};
},
remove: function ($thumb) {
    var id = self._getThumbFileId($thumb);
    self.fileManager.removeFile(id);
},
removeFile: function (id) {
    var fm = self.fileManager;
if (!id) {
    return;
}
delete fm.stack[id];
delete fm.loadedImages[id];
},
move: function (idFrom, idTo) {
var result = {}, stack = self.fileManager.stack;
if (!idFrom && !idTo || idFrom === idTo) {
    return;
}
$.each(stack, function (k, v) {
if (k !== idFrom) {
    result[k] = v;
}
if (k === idTo) {
    result[idFrom] = stack[idFrom];
}
});
self.fileManager.stack = result;
},
list: function () {
    var files = [];
$.each(self.getFileStack(), function (k, v) {
if (v && v.file) {
    files.push(v.file);
}
});
return files;
},
isPending: function (id) {
    return $.inArray(id, self.fileManager.filesProcessed) === -1 && self.fileManager.exists(id);
},
isProcessed: function () {
    var filesProcessed = true, fm = self.fileManager;
$.each(self.getFileStack(), function (id) {
if (fm.isPending(id)) {
    filesProcessed = false;
}
});
return filesProcessed;
},
clear: function () {
    var fm = self.fileManager;
    self.isDuplicateError = false;
    self.isPersistentError = false;
    fm.totalFiles = null;
    fm.totalSize = null;
    fm.uploadedSize = 0;
fm.stack = {};
fm.errors = [];
fm.filesProcessed = [];
fm.stats = {};
fm.bpsLog = [];
fm.bps = 0;
fm.clearImages();
},
clearImages: function () {
self.fileManager.loadedImages = {};
self.fileManager.totalImages = 0;
},
addImage: function (id, config) {
    self.fileManager.loadedImages[id] = config;
},
removeImage: function (id) {
    delete self.fileManager.loadedImages[id];
},
getImageIdList: function () {
    return $h.getObjectKeys(self.fileManager.loadedImages);
},
getImageCount: function () {
    return self.fileManager.getImageIdList().length;
},
getId: function (file) {
    return self._getFileId(file);
},
getIndex: function (id) {
    return self.fileManager.getIdList().indexOf(id);
},
getThumb: function (id) {
    var $thumb = null;
self._getThumbs().each(function () {
    var $t = $(this);
if (self._getThumbFileId($t) === id) {
    $thumb = $t;
}
});
return $thumb;
},
getThumbIndex: function ($thumb) {
    var id = self._getThumbFileId($thumb);
    return self.fileManager.getIndex(id);
},
getIdList: function () {
    return $h.getObjectKeys(self.fileManager.stack);
},
getFile: function (id) {
    return self.fileManager.stack[id] || null;
},
getFileName: function (id, fmt) {
    var file = self.fileManager.getFile(id);
if (!file) {
    return '';
}
return fmt ? (file.nameFmt || '') : file.name || '';
},
getFirstFile: function () {
    var ids = self.fileManager.getIdList(), id = ids && ids.length ? ids[0] : null;
    return self.fileManager.getFile(id);
},
setFile: function (id, file) {
if (self.fileManager.getFile(id)) {
    self.fileManager.stack[id].file = file;
} else {
      self.fileManager.add(file, id);
  }
},
setProcessed: function (id) {
    self.fileManager.filesProcessed.push(id);
},
getProgress: function () {
    var total = self.fileManager.total(), filesProcessed = self.fileManager.filesProcessed.length;
if (!total) {
    return 0;
}
return Math.ceil(filesProcessed / total * 100);

},
setProgress: function (id, pct) {
    var f = self.fileManager.getFile(id);
if (!isNaN(pct) && f) {
    f.progress = pct;
}
}
};
},
_setUploadData: function (fd, config) {
    var self = this;
$.each(config, function (key, value) {
    var param = self.uploadParamNames[key] || key;
if ($h.isArray(value)) {
    fd.append(param, value[0], value[1]);
} else {
      fd.append(param, value);
  }
});
},
_initResumableUpload: function () {
    var self = this, opts = self.resumableUploadOptions, logs = $h.logMessages, rm, fm = self.fileManager;
if (!self.enableResumableUpload) {
    return;
}
if (opts.fallback !== false && typeof opts.fallback !== 'function') {
opts.fallback = function (s) {
    s._log(logs.noResumableSupport);
    s.enableResumableUpload = false;
};
}
if (!$h.hasResumableUploadSupport() && opts.fallback !== false) {
    opts.fallback(self);
    return;
}
if (!self.uploadUrl && self.enableResumableUpload) {
    self._log(logs.noUploadUrl);
    self.enableResumableUpload = false;
    return;

}
opts.chunkSize = parseFloat(opts.chunkSize);
if (opts.chunkSize <= 0 || isNaN(opts.chunkSize)) {
self._log(logs.invalidChunkSize, {chunkSize: opts.chunkSize});
self.enableResumableUpload = false;
return;
}
rm = self.resumableManager = {
init: function (id, f, index) {
    rm.logs = [];
    rm.stack = [];
    rm.error = '';
    rm.id = id;
    rm.file = f.file;
    rm.fileName = f.name;
    rm.fileIndex = index;
    rm.completed = false;
    rm.lastProgress = 0;
if (self.showPreview) {
    rm.$thumb = fm.getThumb(id) || null;
    rm.$progress = rm.$btnDelete = null;
if (rm.$thumb && rm.$thumb.length) {
    rm.$progress = rm.$thumb.find('.file-thumb-progress');
    rm.$btnDelete = rm.$thumb.find('.kv-file-remove');
}
}
rm.chunkSize = opts.chunkSize * self.bytesToKB;
rm.chunkCount = rm.getTotalChunks();
},
setAjaxError: function (jqXHR, textStatus, errorThrown, isTest) {
if (jqXHR.responseJSON && jqXHR.responseJSON.error) {
    errorThrown = jqXHR.responseJSON.error.toString();
}
if (!isTest) {
    rm.error = errorThrown;
}
if (opts.showErrorLog) {
self._log(logs.ajaxError, {
              status: jqXHR.status,
              error: errorThrown,
              text: jqXHR.responseText || ''
          });
}
},
reset: function () {
    rm.stack = [];
rm.chunksProcessed = {};
},
setProcessed: function (status) {
var id = rm.id, msg, $thumb = rm.$thumb, $prog = rm.$progress, hasThumb = $thumb && $thumb.length,
                                                                                     params = {id: hasThumb ? $thumb.attr('id') : '', index: fm.getIndex(id), fileId: id}, tokens,
                                                                                                                                                                           skipErrorsAndProceed = self.resumableUploadOptions.skipErrorsAndProceed;
rm.completed = true;
rm.lastProgress = 0;
if (hasThumb) {
    $thumb.removeClass('file-uploading');
}
if (status === 'success') {
    fm.uploadedSize += rm.file.size;
if (self.showPreview) {
    self._setProgress(101, $prog);
    self._setThumbStatus($thumb, 'Success');
    self._initUploadSuccess(rm.chunksProcessed[id].data, $thumb);
}
fm.removeFile(id);
delete rm.chunksProcessed[id];
self._raise('fileuploaded', [params.id, params.index, params.fileId]);
if (fm.isProcessed()) {
    self._setProgress(101);
}
} else {
if (status !== 'cancel') {
if (self.showPreview) {
    self._setThumbStatus($thumb, 'Error');
    self._setPreviewError($thumb, true);
    self._setProgress(101, $prog, self.msgProgressError);
    self._setProgress(101, self.$progress, self.msgProgressError);
    self.cancelling = !skipErrorsAndProceed;
}
if (!self.$errorContainer.find('li[data-file-id="' + params.fileId + '"]').length) {
tokens = {file: rm.fileName, max: opts.maxRetries, error: rm.error};
msg = self.msgResumableUploadRetriesExceeded.setTokens(tokens);
$.extend(params, tokens);
self._showFileError(msg, params, 'filemaxretries');
if (skipErrorsAndProceed) {
    fm.removeFile(id);
    delete rm.chunksProcessed[id];
if (fm.isProcessed()) {
    self._setProgress(101);
}
}
}
}
}
if (fm.isProcessed()) {
    rm.reset();
}
},
check: function () {
    var status = true;
$.each(rm.logs, function (index, value) {
if (!value) {
    status = false;
    return false;
}
});
},
processedResumables: function () {
    var logs = rm.logs, i, count = 0;
if (!logs || !logs.length) {
    return 0;
}
for (i = 0; i < logs.length; i++) {
if (logs[i] === true) {
    count++;
}
}
return count;
},
getUploadedSize: function () {
    var size = rm.processedResumables() * rm.chunkSize;
    return size > rm.file.size ? rm.file.size : size;
},
getTotalChunks: function () {
    var chunkSize = parseFloat(rm.chunkSize);
if (!isNaN(chunkSize) && chunkSize > 0) {
    return Math.ceil(rm.file.size / chunkSize);
}
return 0;
},
getProgress: function () {
    var chunksProcessed = rm.processedResumables(), total = rm.chunkCount;
if (total === 0) {
    return 0;
}
return Math.ceil(chunksProcessed / total * 100);
},
checkAborted: function (intervalId) {
if (self._isAborted()) {
clearInterval(intervalId);
    self.unlock();
}
},
upload: function () {
    var ids = fm.getIdList(), flag = 'new', intervalId;
intervalId = setInterval(function () {
    var id;
    rm.checkAborted(intervalId);
if (flag === 'new') {
    self.lock();
    flag = 'processing';
    id = ids.shift();
    fm.initStats(id);
if (fm.stack[id]) {
    rm.init(id, fm.stack[id], fm.getIndex(id));
    rm.processUpload();
}
}
if (!fm.isPending(id) && rm.completed) {
    flag = 'new';
}
if (fm.isProcessed()) {
    var $initThumbs = self.$preview.find('.file-preview-initial');
if ($initThumbs.length) {
    $h.addCss($initThumbs, $h.SORT_CSS);
    self._initSortable();
}
clearInterval(intervalId);
self._clearFileInput();
self.unlock();
setTimeout(function () {
    var data = self.previewCache.data;
if (data) {
    self.initialPreview = data.content;
    self.initialPreviewConfig = data.config;
    self.initialPreviewThumbTags = data.tags;
}
self._raise('filebatchuploadcomplete', [
                                    self.initialPreview,
                                       self.initialPreviewConfig,
                                       self.initialPreviewThumbTags,
                                       self._getExtraData()
]);
}, self.processDelay);
}
}, self.processDelay);
},
uploadResumable: function () {
    var i, pool, tm = self.taskManager, total = rm.chunkCount;
    pool = tm.addPool(rm.id);
    for (i = 0; i < total; i++) {
    rm.logs[i] = !!(rm.chunksProcessed[rm.id] && rm.chunksProcessed[rm.id][i]);
if (!rm.logs[i]) {
    rm.pushAjax(i, 0);
}
}
pool.run(opts.maxThreads)
.done(function () {
    rm.setProcessed('success');
})
.fail(function () {
    rm.setProcessed(pool.cancelled ? 'cancel' : 'error');
});
},
processUpload: function () {
    var fd, f, id = rm.id, fnBefore, fnSuccess, fnError, fnComplete, outData;
if (!opts.testUrl) {
    rm.uploadResumable();
    return;
}
fd = new FormData();
f = fm.stack[id];
self._setUploadData(fd, {
                        fileId: id,
                        fileName: f.fileName,
                        fileSize: f.size,
                        fileRelativePath: f.relativePath,
                        chunkSize: rm.chunkSize,
                        chunkCount: rm.chunkCount
                    });
fnBefore = function (jqXHR) {
    outData = self._getOutData(fd, jqXHR);
    self._raise('filetestbeforesend', [id, fm, rm, outData]);
};
fnSuccess = function (data, textStatus, jqXHR) {
    outData = self._getOutData(fd, jqXHR, data);
    var pNames = self.uploadParamNames, chunksUploaded = pNames.chunksUploaded || 'chunksUploaded',
    params = [id, fm, rm, outData];
if (!data[chunksUploaded] || !$h.isArray(data[chunksUploaded])) {
    self._raise('filetesterror', params);
} else {
if (!rm.chunksProcessed[id]) {
rm.chunksProcessed[id] = {};
}
$.each(data[chunksUploaded], function (key, index) {
    rm.logs[index] = true;
    rm.chunksProcessed[id][index] = true;
});
rm.chunksProcessed[id].data = data;
self._raise('filetestsuccess', params);
}
rm.uploadResumable();
};
fnError = function (jqXHR, textStatus, errorThrown) {
    outData = self._getOutData(fd, jqXHR);
    self._raise('filetestajaxerror', [id, fm, rm, outData]);
    rm.setAjaxError(jqXHR, textStatus, errorThrown, true);
    rm.uploadResumable();
};
fnComplete = function () {
    self._raise('filetestcomplete', [id, fm, rm, self._getOutData(fd)]);
};
self._ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError, fd, id, rm.fileIndex, opts.testUrl);
},
pushAjax: function (index, retry) {
    var tm = self.taskManager, pool = tm.getPool(rm.id);
pool.addTask(pool.size() + 1, function (deferrer) {
// use fifo chunk stack
var arr = rm.stack.shift(), index;
    index = arr[0];
if (!rm.chunksProcessed[rm.id] || !rm.chunksProcessed[rm.id][index]) {
    rm.sendAjax(index, arr[1], deferrer);
} else {
self._log(logs.chunkQueueError, {index: index});
}
});
rm.stack.push([index, retry]);
},
sendAjax: function (index, retry, deferrer) {
var f, chunkSize = rm.chunkSize, id = rm.id, file = rm.file, $thumb = rm.$thumb,
                                                                      msgs = $h.logMessages, $btnDelete = rm.$btnDelete, logError = function (msg, tokens) {
if (tokens) {
    msg = msg.setTokens(tokens);
}
msg = msgs.resumableRequestError.setTokens({msg: msg});
self._log(msg);
deferrer.reject(msg);
};
if (rm.chunksProcessed[id] && rm.chunksProcessed[id][index]) {
    return;
}
if (retry > opts.maxRetries) {
logError(msgs.resumableMaxRetriesReached, {n: opts.maxRetries});
rm.setProcessed('error');
return;
}
var fd, outData, fnBefore, fnSuccess, fnError, fnComplete, slice = file.slice ? 'slice' :
(file.mozSlice ? 'mozSlice' : (file.webkitSlice ? 'webkitSlice' : 'slice')),
blob = file[slice](chunkSize * index, chunkSize * (index + 1));
fd = new FormData();
f = fm.stack[id];
self._setUploadData(fd, {
                        chunkCount: rm.chunkCount,
                        chunkIndex: index,
                        chunkSize: chunkSize,
                        chunkSizeStart: chunkSize * index,
                        fileBlob: [blob, rm.fileName],
                        fileId: id,
                        fileName: rm.fileName,
                        fileRelativePath: f.relativePath,
                        fileSize: file.size,
                        retryCount: retry
                    });
if (rm.$progress && rm.$progress.length) {
    rm.$progress.show();
}
fnBefore = function (jqXHR) {
    outData = self._getOutData(fd, jqXHR);
if (self.showPreview) {
if (!$thumb.hasClass('file-preview-success')) {
    self._setThumbStatus($thumb, 'Loading');
    $h.addCss($thumb, 'file-uploading');
}
$btnDelete.attr('disabled', true);
}
self._raise('filechunkbeforesend', [id, index, retry, fm, rm, outData]);
};
fnSuccess = function (data, textStatus, jqXHR) {
if (self._isAborted()) {
logError(msgs.resumableAborting);
    return;
}
outData = self._getOutData(fd, jqXHR, data);
var paramNames = self.uploadParamNames, chunkIndex = paramNames.chunkIndex || 'chunkIndex',
params = [id, index, retry, fm, rm, outData];
if (data.error) {
if (opts.showErrorLog) {
self._log(logs.retryStatus, {
              retry: retry + 1,
              filename: rm.fileName,
              chunk: index
          });
}
self._raise('filechunkerror', params);
rm.pushAjax(index, retry + 1);
rm.error = data.error;
logError(data.error);
} else {
      rm.logs[data[chunkIndex]] = true;
if (!rm.chunksProcessed[id]) {
rm.chunksProcessed[id] = {};
}
rm.chunksProcessed[id][data[chunkIndex]] = true;
rm.chunksProcessed[id].data = data;
deferrer.resolve.call(null, data);
self._raise('filechunksuccess', params);
rm.check();
}
};
fnError = function (jqXHR, textStatus, errorThrown) {
if (self._isAborted()) {
logError(msgs.resumableAborting);
    return;
}
outData = self._getOutData(fd, jqXHR);
rm.setAjaxError(jqXHR, textStatus, errorThrown);
self._raise('filechunkajaxerror', [id, index, retry, fm, rm, outData]);
rm.pushAjax(index, retry + 1);                        // push another task
logError(msgs.resumableRetryError, {n: retry - 1}); // resolve the current task
};
fnComplete = function () {
if (!self._isAborted()) {
    self._raise('filechunkcomplete', [id, index, retry, fm, rm, self._getOutData(fd)]);
}
};
self._ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError, fd, id, rm.fileIndex);
}
};
rm.reset();
},
_initTemplateDefaults: function () {
var self = this, tMain1, tMain2, tPreview, tFileIcon, tClose, tCaption, tBtnDefault, tBtnLink, tBtnBrowse,
           tModalMain, tModal, tProgress, tSize, tFooter, tActions, tActionDelete, tActionUpload, tActionDownload,
           tActionZoom, tActionDrag, tIndicator, tTagBef, tTagBef1, tTagBef2, tTagAft, tGeneric, tHtml, tImage,
           tText, tOffice, tGdocs, tVideo, tAudio, tFlash, tObject, tPdf, tOther, tStyle, tZoomCache, vDefaultDim,
           tStats, tModalLabel, tDescClose, renderObject = function (type, mime) {
    return '<object class="kv-preview-data file-preview-' + type + '" title="{caption}" ' +
    'data="{data}" type="' + mime + '"' + tStyle + '>\n' + $h.DEFAULT_PREVIEW + '\n</object>\n';
}, defBtnCss1 = 'btn btn-sm btn-kv ' + $h.defaultButtonCss();
tMain1 = '{preview}\n' +
'<div class="kv-upload-progress kv-hidden"></div><div class="clearfix"></div>\n' +
'<div class="file-caption {class}">\n' +
'  <div class="input-group {inputGroupClass}">\n' +
'      {caption}\n<span class="file-caption-icon"></span>\n' +
($h.isBs(5) ? '' : '<div class="input-group-btn input-group-append">\n') +
'      {remove}\n' +
'      {cancel}\n' +
'      {pause}\n' +
'      {upload}\n' +
'      {browse}\n' +
($h.isBs(5) ? '' : '    </div>\n') +
'  </div>'
'</div>';
tMain2 = '{preview}\n<div class="kv-upload-progress kv-hidden"></div>\n<div class="clearfix"></div>\n' +
'<span class="{class}">{remove}\n{cancel}\n{upload}\n{browse}\n</span>';
tPreview = '<div class="file-preview {class}">\n' +
'  {close}' +
'  <div class="{dropClass} clearfix">\n' +
'    <div class="file-preview-thumbnails clearfix">\n' +
'    </div>\n' +
'    <div class="file-preview-status text-center text-success"></div>\n' +
'    <div class="kv-fileinput-error"></div>\n' +
'  </div>\n' +
'</div>';
tClose = $h.closeButton('fileinput-remove');
tFileIcon = '<i class="bi-file-earmark-arrow-up"></i>';
// noinspection HtmlUnknownAttribute
   tCaption = '<input readonly class="file-caption-name form-control {class}">\n';
//noinspection HtmlUnknownAttribute
  tBtnDefault = '<button type="{type}" title="{title}" class="{css}" ' +
'{status} {tabIndexConfig}>{icon} {label}</button>';
//noinspection HtmlUnknownTarget,HtmlUnknownAttribute
tBtnLink = '<a href="{href}" title="{title}" class="{css}" {status} {tabIndexConfig}>{icon} {label}</a>';
//noinspection HtmlUnknownAttribute
  tBtnBrowse = '<div class="{css}" {status} {tabIndexConfig}>{icon} {label}</div>';
tModalLabel = $h.MODAL_ID + 'Label';
tModalMain = '<div id="' + $h.MODAL_ID + '" class="file-zoom-dialog modal fade" ' +
'aria-labelledby="' + tModalLabel + '" {tabIndexConfig}></div>';
tModal = '<div class="modal-dialog modal-lg{rtl}" role="document">\n' +
'  <div class="modal-content">\n' +
'    <div class="modal-header kv-zoom-header">\n' +
'      <h6 class="modal-title kv-zoom-title" id="' + tModalLabel + '"><span class="kv-zoom-caption"></span> <span class="kv-zoom-size"></span></h6>\n' +
'      <div class="kv-zoom-actions">{toggleheader}{fullscreen}{borderless}{close}</div>\n' +
'    </div>\n' +
'    <div class="floating-buttons"></div>\n' +
'    <div class="kv-zoom-body file-zoom-content {zoomFrameClass}"></div>\n' + '{prev} {next}\n' +
'    <div class="kv-zoom-description"></div>\n' +
'  </div>\n' +
'</div>\n';
tDescClose = '<button type="button" class="kv-desc-hide" aria-label="Close">{closeIcon}</button>';
tProgress = '<div class="progress">\n' +
'    <div class="{class}" role="progressbar"' +
' aria-valuenow="{percent}" aria-valuemin="0" aria-valuemax="100" style="width:{percent}%;">\n' +
'        {status}\n' +
'     </div>\n' +
'</div>{stats}';
tStats = '<div class="text-primary file-upload-stats">' +
'<span class="pending-time">{pendingTime}</span> ' +
'<span class="upload-speed">{uploadSpeed}</span>' +
'</div>';
tSize = ' <samp>({sizeText})</samp>';
tFooter = '<div class="file-thumbnail-footer">\n' +
'    <div class="file-footer-caption" title="{caption}">\n' +
'        <div class="file-caption-info">{caption}</div>\n' +
'        <div class="file-size-info">{size}</div>\n' +
'    </div>\n' +
'    {progress}\n{indicator}\n{actions}\n' +
'</div>';
tActions = '<div class="file-actions">\n' +
'    <div class="file-footer-buttons">\n' +
'        {download} {upload} {delete} {zoom} {other}' +
'    </div>\n' +
'</div>\n' +
'{drag}\n' +
'<div class="clearfix"></div>';
//noinspection HtmlUnknownAttribute
  tActionDelete = '<button type="button" class="kv-file-remove {removeClass}" ' +
'title="{removeTitle}" {dataUrl}{dataKey}>{removeIcon}</button>\n';
tActionUpload = '<button type="button" class="kv-file-upload {uploadClass}" title="{uploadTitle}">' +
'{uploadIcon}</button>';
tActionDownload = '<a class="kv-file-download {downloadClass}" title="{downloadTitle}" ' +
'href="{downloadUrl}" download="{caption}" target="_blank">{downloadIcon}</a>';
tActionZoom = '<button type="button" class="kv-file-zoom {zoomClass}" ' +
'title="{zoomTitle}">{zoomIcon}</button>';
tActionDrag = '<span class="file-drag-handle {dragClass}" title="{dragTitle}">{dragIcon}</span>';
tIndicator = '<div class="file-upload-indicator" title="{indicatorTitle}">{indicator}</div>';
tTagBef = '<div class="file-preview-frame {frameClass}" id="{previewId}" data-fileindex="{fileindex}"' +
' data-fileid="{fileid}" data-template="{template}" data-zoom="{zoomData}"';
tTagBef1 = tTagBef + '><div class="kv-file-content">\n';
tTagBef2 = tTagBef + ' title="{caption}"><div class="kv-file-content">\n';
tTagAft = '</div>{footer}\n{zoomCache}</div>\n';
tGeneric = '{content}\n';
tStyle = ' {style}';
tHtml = renderObject('html', 'text/html');
tText = renderObject('text', 'text/plain;charset=UTF-8');
tPdf = renderObject('pdf', 'application/pdf');
tImage = '<img src="{data}" class="file-preview-image kv-preview-data" title="{title}" alt="{alt}"' +
                                                                                                    tStyle + '>\n';
tOffice = '<iframe class="kv-preview-data file-preview-office" ' +
'src="https://view.officeapps.live.com/op/embed.aspx?src={data}"' + tStyle + '></iframe>';
tGdocs = '<iframe class="kv-preview-data file-preview-gdocs" ' +
'src="https://docs.google.com/gview?url={data}&embedded=true"' + tStyle + '></iframe>';
tVideo = '<video class="kv-preview-data file-preview-video" controls' + tStyle + '>\n' +
'<source src="{data}" type="{type}">\n' + $h.DEFAULT_PREVIEW + '\n</video>\n';
tAudio = '<!--suppress ALL --><audio class="kv-preview-data file-preview-audio" controls' + tStyle + '>\n<source src="{data}" ' +
'type="{type}">\n' + $h.DEFAULT_PREVIEW + '\n</audio>\n';
tFlash = '<embed class="kv-preview-data file-preview-flash" src="{data}" type="application/x-shockwave-flash"' + tStyle + '>\n';
tObject = '<object class="kv-preview-data file-preview-object file-object {typeCss}" ' +
'data="{data}" type="{type}"' + tStyle + '>\n' + '<param name="movie" value="{caption}" />\n' +
                                                                                              $h.OBJECT_PARAMS + ' ' + $h.DEFAULT_PREVIEW + '\n</object>\n';
tOther = '<div class="kv-preview-data file-preview-other-frame"' + tStyle + '>\n' + $h.DEFAULT_PREVIEW + '\n</div>\n';
tZoomCache = '<div class="kv-zoom-cache">{zoomContent}</div>';
vDefaultDim = {width: '100%', height: '100%', 'min-height': '480px'};
if (self._isPdfRendered()) {
    tPdf = self.pdfRendererTemplate.replace('{renderer}', self._encodeURI(self.pdfRendererUrl));
}
self.defaults = {
layoutTemplates: {
    main1: tMain1,
    main2: tMain2,
    preview: tPreview,
    close: tClose,
    fileIcon: tFileIcon,
    caption: tCaption,
    modalMain: tModalMain,
    modal: tModal,
    descriptionClose: tDescClose,
    progress: tProgress,
    stats: tStats,
    size: tSize,
    footer: tFooter,
    indicator: tIndicator,
    actions: tActions,
    actionDelete: tActionDelete,
    actionUpload: tActionUpload,
    actionDownload: tActionDownload,
    actionZoom: tActionZoom,
    actionDrag: tActionDrag,
    btnDefault: tBtnDefault,
    btnLink: tBtnLink,
    btnBrowse: tBtnBrowse,
    zoomCache: tZoomCache
},
previewMarkupTags: {
    tagBefore1: tTagBef1,
    tagBefore2: tTagBef2,
    tagAfter: tTagAft
},
previewContentTemplates: {
    generic: tGeneric,
    html: tHtml,
    image: tImage,
    text: tText,
    office: tOffice,
    gdocs: tGdocs,
    video: tVideo,
    audio: tAudio,
    flash: tFlash,
    object: tObject,
    pdf: tPdf,
    other: tOther
},
allowedPreviewTypes: ['image', 'html', 'text', 'video', 'audio', 'flash', 'pdf', 'object'],
previewTemplates: {},
previewSettings: {
image: {width: 'auto', height: 'auto', 'max-width': '100%', 'max-height': '100%'},
html: {width: '213px', height: '160px'},
text: {width: '213px', height: '160px'},
office: {width: '213px', height: '160px'},
gdocs: {width: '213px', height: '160px'},
video: {width: '213px', height: '160px'},
audio: {width: '100%', height: '30px'},
flash: {width: '213px', height: '160px'},
object: {width: '213px', height: '160px'},
pdf: {width: '100%', height: '160px', 'position': 'relative'},
other: {width: '213px', height: '160px'}
},
previewSettingsSmall: {
image: {width: 'auto', height: 'auto', 'max-width': '100%', 'max-height': '100%'},
html: {width: '100%', height: '160px'},
text: {width: '100%', height: '160px'},
office: {width: '100%', height: '160px'},
gdocs: {width: '100%', height: '160px'},
video: {width: '100%', height: 'auto'},
audio: {width: '100%', height: '30px'},
flash: {width: '100%', height: 'auto'},
object: {width: '100%', height: 'auto'},
pdf: {width: '100%', height: '160px'},
other: {width: '100%', height: '160px'}
},
previewZoomSettings: {
image: {width: 'auto', height: 'auto', 'max-width': '100%', 'max-height': '100%'},
html: vDefaultDim,
text: vDefaultDim,
office: {width: '100%', height: '100%', 'max-width': '100%', 'min-height': '480px'},
gdocs: {width: '100%', height: '100%', 'max-width': '100%', 'min-height': '480px'},
video: {width: 'auto', height: '100%', 'max-width': '100%'},
audio: {width: '100%', height: '30px'},
flash: {width: 'auto', height: '480px'},
object: {width: 'auto', height: '100%', 'max-width': '100%', 'min-height': '480px'},
pdf: vDefaultDim,
other: {width: 'auto', height: '100%', 'min-height': '480px'}
},
mimeTypeAliases: {
'video/quicktime': 'video/mp4'
},
fileTypeSettings: {
image: function (vType, vName) {
    return ($h.compare(vType, 'image.*') && !$h.compare(vType, /(tiff?|wmf)$/i) ||
$h.compare(vName, /\.(gif|png|jpe?g)$/i));
},
html: function (vType, vName) {
    return $h.compare(vType, 'text/html') || $h.compare(vName, /\.(htm|html)$/i);
},
office: function (vType, vName) {
    return $h.compare(vType, /(word|excel|powerpoint|office)$/i) ||
$h.compare(vName, /\.(docx?|xlsx?|pptx?|pps|potx?)$/i);
},
gdocs: function (vType, vName) {
    return $h.compare(vType, /(word|excel|powerpoint|office|iwork-pages|tiff?)$/i) ||
$h.compare(vName,
/\.(docx?|xlsx?|pptx?|pps|potx?|rtf|ods|odt|pages|ai|dxf|ttf|tiff?|wmf|e?ps)$/i);
},
text: function (vType, vName) {
    return $h.compare(vType, 'text.*') || $h.compare(vName, /\.(xml|javascript)$/i) ||
    $h.compare(vName, /\.(txt|md|nfo|ini|json|php|js|css)$/i);
},
video: function (vType, vName) {
    return $h.compare(vType, 'video.*') && ($h.compare(vType, /(ogg|mp4|mp?g|mov|webm|3gp)$/i) ||
$h.compare(vName, /\.(og?|mp4|webm|mp?g|mov|3gp)$/i));
},
audio: function (vType, vName) {
    return $h.compare(vType, 'audio.*') && ($h.compare(vName, /(ogg|mp3|mp?g|wav)$/i) ||
$h.compare(vName, /\.(og?|mp3|mp?g|wav)$/i));
},
flash: function (vType, vName) {
    return $h.compare(vType, 'application/x-shockwave-flash', true) || $h.compare(vName,
    /\.(swf)$/i);
},
pdf: function (vType, vName) {
    return $h.compare(vType, 'application/pdf', true) || $h.compare(vName, /\.(pdf)$/i);
},
object: function () {
    return true;
},
other: function () {
    return true;
}
},
fileActionSettings: {
showRemove: true,
showUpload: true,
showDownload: true,
showZoom: true,
showDrag: true,
removeIcon: '<i class="bi-trash"></i>',
removeClass: defBtnCss1,
removeErrorClass: 'btn btn-sm btn-kv btn-danger',
removeTitle: 'Remove file',
uploadIcon: '<i class="bi-upload"></i>',
uploadClass: defBtnCss1,
uploadTitle: 'Upload file',
uploadRetryIcon: '<i class="bi-arrow-clockwise"></i>',
uploadRetryTitle: 'Retry upload',
downloadIcon: '<i class="bi-download"></i>',
downloadClass: defBtnCss1,
downloadTitle: 'Download file',
zoomIcon: '<i class="bi-zoom-in"></i>',
zoomClass: defBtnCss1,
zoomTitle: 'View Details',
dragIcon: '<i class="bi-arrows-move"></i>',
dragClass: 'text-primary',
dragTitle: 'Move / Rearrange',
dragSettings: {},
indicatorNew: '<i class="bi-plus-lg text-warning"></i>',
indicatorSuccess: '<i class="bi-check-lg text-success"></i>',
indicatorError: '<i class="bi-exclamation-lg text-danger"></i>',
indicatorLoading: '<i class="bi-hourglass-bottom text-muted"></i>',
indicatorPaused: '<i class="bi-pause-fill text-primary"></i>',
indicatorNewTitle: 'Not uploaded yet',
indicatorSuccessTitle: 'Uploaded',
indicatorErrorTitle: 'Upload Error',
indicatorLoadingTitle: 'Uploading &hellip;',
indicatorPausedTitle: 'Upload Paused'
}
};
$.each(self.defaults, function (key, setting) {
if (key === 'allowedPreviewTypes') {
if (self.allowedPreviewTypes === undefined) {
    self.allowedPreviewTypes = setting;
}
return;
}
self[key] = $.extend(true, {}, setting, self[key]);
});
self._initPreviewTemplates();
},
_initPreviewTemplates: function () {
    var self = this, tags = self.previewMarkupTags, tagBef, tagAft = tags.tagAfter;
$.each(self.previewContentTemplates, function (key, value) {
if ($h.isEmpty(self.previewTemplates[key])) {
    tagBef = tags.tagBefore2;
if (key === 'generic' || key === 'image') {
    tagBef = tags.tagBefore1;
}
if (self._isPdfRendered() && key === 'pdf') {
    tagBef = tagBef.replace('kv-file-content', 'kv-file-content kv-pdf-rendered');
}
self.previewTemplates[key] = tagBef + value + tagAft;
}
});
},
_initPreviewCache: function () {
    var self = this;
self.previewCache = {
data: {},
init: function () {
    var content = self.initialPreview;
if (content.length > 0 && !$h.isArray(content)) {
    content = content.split(self.initialPreviewDelimiter);
}
self.previewCache.data = {
    content: content,
    config: self.initialPreviewConfig,
    tags: self.initialPreviewThumbTags
};
},
count: function (skipNull) {
if (!self.previewCache.data || !self.previewCache.data.content) {
    return 0;
}
if (skipNull) {
var chk = self.previewCache.data.content.filter(function (n) {
    return n !== null;
});
return chk.length;
}
return self.previewCache.data.content.length;
},
get: function (i, isDisabled) {
var ind = $h.INIT_FLAG + i, data = self.previewCache.data, config = data.config[i],
                                                                    content = data.content[i], out, $tmp, cat, ftr,
                                                                                                     fname, ftype, frameClass, asData = $h.ifSet('previewAsData', config, self.initialPreviewAsData),
a = config ? {title: config.title || null, alt: config.alt || null} : {title: null, alt: null},
parseTemplate = function (cat, dat, fname, ftype, ftr, ind, fclass, t) {
    var fc = ' file-preview-initial ' + $h.SORT_CSS + (fclass ? ' ' + fclass : ''),
id = self.previewInitId + '-' + ind,
fileId = config && config.fileId || id;
/** @namespace config.zoomData */
    return self._generatePreviewTemplate(cat, dat, fname, ftype, id, fileId, false, null, fc,
    ftr, ind, t, a, config && config.zoomData || dat);
};
if (!content || !content.length) {
    return '';
}
isDisabled = isDisabled === undefined ? true : isDisabled;
cat = $h.ifSet('type', config, self.initialPreviewFileType || 'generic');
fname = $h.ifSet('filename', config, $h.ifSet('caption', config));
ftype = $h.ifSet('filetype', config, cat);
ftr = self.previewCache.footer(i, isDisabled, (config && config.size || null));
frameClass = $h.ifSet('frameClass', config);
if (asData) {
    out = parseTemplate(cat, content, fname, ftype, ftr, ind, frameClass);
} else {
out = parseTemplate('generic', content, fname, ftype, ftr, ind, frameClass, cat)
.setTokens({'content': data.content[i]});
}
if (data.tags.length && data.tags[i]) {
    out = $h.replaceTags(out, data.tags[i]);
}
/** @namespace config.frameAttr */
if (!$h.isEmpty(config) && !$h.isEmpty(config.frameAttr)) {
    $tmp = $h.createElement(out);
    $tmp.find('.file-preview-initial').attr(config.frameAttr);
    out = $tmp.html();
    $tmp.remove();
}
return out;
},
clean: function (data) {
    data.content = $h.cleanArray(data.content);
    data.config = $h.cleanArray(data.config);
    data.tags = $h.cleanArray(data.tags);
    self.previewCache.data = data;
},
add: function (content, config, tags, append) {
    var data = self.previewCache.data, index;
if (!content || !content.length) {
    return 0;
}
index = content.length - 1;
if (!$h.isArray(content)) {
    content = content.split(self.initialPreviewDelimiter);
}
if (append && data.content) {
    index = data.content.push(content[0]) - 1;
    data.config[index] = config;
    data.tags[index] = tags;
} else {
      data.content = content;
      data.config = config;
      data.tags = tags;
  }
self.previewCache.clean(data);
return index;
},
set: function (content, config, tags, append) {
    var data = self.previewCache.data, i, chk;
if (!content || !content.length) {
    return;
}
if (!$h.isArray(content)) {
    content = content.split(self.initialPreviewDelimiter);
}
chk = content.filter(function (n) {
    return n !== null;
});
if (!chk.length) {
    return;
}
if (data.content === undefined) {
    data.content = [];
}
if (data.config === undefined) {
    data.config = [];
}
if (data.tags === undefined) {
    data.tags = [];
}
if (append) {
    for (i = 0; i < content.length; i++) {
if (content[i]) {
    data.content.push(content[i]);
}
}
for (i = 0; i < config.length; i++) {
if (config[i]) {
    data.config.push(config[i]);
}
}
for (i = 0; i < tags.length; i++) {
if (tags[i]) {
    data.tags.push(tags[i]);
}
}
} else {
      data.content = content;
      data.config = config;
      data.tags = tags;
  }
self.previewCache.clean(data);
},
unset: function (index) {
    var chk = self.previewCache.count(), rev = self.reversePreviewOrder;
if (!chk) {
    return;
}
if (chk === 1) {
    self.previewCache.data.content = [];
    self.previewCache.data.config = [];
    self.previewCache.data.tags = [];
    self.initialPreview = [];
    self.initialPreviewConfig = [];
    self.initialPreviewThumbTags = [];
    return;
}
self.previewCache.data.content = $h.spliceArray(self.previewCache.data.content, index, rev);
self.previewCache.data.config = $h.spliceArray(self.previewCache.data.config, index, rev);
self.previewCache.data.tags = $h.spliceArray(self.previewCache.data.tags, index, rev);
var data = $.extend(true, {}, self.previewCache.data);
self.previewCache.clean(data);
},
out: function () {
    var html = '', caption, len = self.previewCache.count(), i, content;
if (len === 0) {
return {content: '', caption: ''};
}
for (i = 0; i < len; i++) {
    content = self.previewCache.get(i);
    html = self.reversePreviewOrder ? (content + html) : (html + content);
}
caption = self._getMsgSelected(len);
return {content: html, caption: caption};
},
footer: function (i, isDisabled, size) {
var data = self.previewCache.data || {};
if ($h.isEmpty(data.content)) {
    return '';
}
if ($h.isEmpty(data.config) || $h.isEmpty(data.config[i])) {
data.config[i] = {};
}
isDisabled = isDisabled === undefined ? true : isDisabled;
var config = data.config[i], caption = $h.ifSet('caption', config), a,
                                                                    width = $h.ifSet('width', config, 'auto'), url = $h.ifSet('url', config, false),
key = $h.ifSet('key', config, null), fileId = $h.ifSet('fileId', config, null),
fs = self.fileActionSettings, initPreviewShowDel = self.initialPreviewShowDelete || false,
                                                   downloadInitialUrl = !self.initialPreviewDownloadUrl ? '' :
                                                                                                             self.initialPreviewDownloadUrl + '?key=' + key + (fileId ? '&fileId=' + fileId : ''),
dUrl = config.downloadUrl || downloadInitialUrl,
       dFil = config.filename || config.caption || '',
initPreviewShowDwl = !!(dUrl),
sDel = $h.ifSet('showRemove', config, initPreviewShowDel),
sDwl = $h.ifSet('showDownload', config, $h.ifSet('showDownload', fs, initPreviewShowDwl)),
sZm = $h.ifSet('showZoom', config, $h.ifSet('showZoom', fs, true)),
sDrg = $h.ifSet('showDrag', config, $h.ifSet('showDrag', fs, true)),
dis = (url === false) && isDisabled;
sDwl = sDwl && config.downloadUrl !== false && !!dUrl;
a = self._renderFileActions(config, false, sDwl, sDel, sZm, sDrg, dis, url, key, true, dUrl, dFil);
return self._getLayoutTemplate('footer').setTokens({
'progress': self._renderThumbProgress(),
'actions': a,
'caption': caption,
'size': self._getSize(size),
'width': width,
'indicator': ''
});
}
};
self.previewCache.init();
},
_isPdfRendered: function () {
    var self = this, useLib = self.usePdfRenderer,
    flag = typeof useLib === 'function' ? useLib() : !!useLib;
    return flag && self.pdfRendererUrl;
},
_handler: function ($el, event, callback) {
    var self = this, ns = self.namespace, ev = event.split(' ').join(ns + ' ') + ns;
if (!$el || !$el.length) {
    return;
}
$el.off(ev).on(ev, callback);
},
_encodeURI: function (vUrl) {
    var self = this;
    return self.encodeUrl ? encodeURI(vUrl) : vUrl;
},
_log: function (msg, tokens) {
    var self = this, id = self.$element.attr('id');
if (!self.showConsoleLogs) {
    return;
}
if (id) {
    msg = '"' + id + '": ' + msg;
}
msg = 'bootstrap-fileinput: ' + msg;
if (typeof tokens === 'object') {
    msg = msg.setTokens(tokens);
}
if (window.console && typeof window.console.log !== 'undefined') {
    window.console.log(msg);
} else {
      window.alert(msg);
  }
},
_validate: function () {
    var self = this, status = self.$element.attr('type') === 'file';
if (!status) {
    self._log($h.logMessages.badInputType);
}
return status;
},
_errorsExist: function () {
    var self = this, $err, $errList = self.$errorContainer.find('li');
if ($errList.length) {
    return true;
}
$err = $h.createElement(self.$errorContainer.html());
$err.find('.kv-error-close').remove();
$err.find('ul').remove();
return !!$.trim($err.text()).length;
},
_errorHandler: function (evt, caption) {
var self = this, err = evt.target.error, showError = function (msg) {
    self._showError(msg.replace('{name}', caption));
};
/** @namespace err.NOT_FOUND_ERR */
/** @namespace err.SECURITY_ERR */
/** @namespace err.NOT_READABLE_ERR */
if (err.code === err.NOT_FOUND_ERR) {
showError(self.msgFileNotFound);
} else {
if (err.code === err.SECURITY_ERR) {
showError(self.msgFileSecured);
} else {
if (err.code === err.NOT_READABLE_ERR) {
showError(self.msgFileNotReadable);
} else {
if (err.code === err.ABORT_ERR) {
showError(self.msgFilePreviewAborted);
} else {
  showError(self.msgFilePreviewError);
  }
}
}
}
},
_addError: function (msg) {
    var self = this, $error = self.$errorContainer;
if (msg && $error.length) {
    $h.setHtml($error, self.errorCloseButton + msg);
self._handler($error.find('.kv-error-close'), 'click', function () {
setTimeout(function () {
if (self.showPreview && !self.getFrames().length) {
    self.clear();
}
$error.fadeOut('slow');
}, self.processDelay);
});
}
},
_setValidationError: function (css) {
    var self = this;
    css = (css ? css + ' ' : '') + 'has-error';
    self.$container.removeClass(css).addClass('has-error');
    $h.addCss(self.$caption, 'is-invalid');
},
_resetErrors: function (fade) {
    var self = this, $error = self.$errorContainer, history = self.resumableUploadOptions.retainErrorHistory;
if (self.isPersistentError || (self.enableResumableUpload && history)) {
    return;
}
self.isError = false;
self.$container.removeClass('has-error');
self.$caption.removeClass('is-invalid is-valid file-processing');
$error.html('');
if (fade) {
    $error.fadeOut('slow');
} else {
      $error.hide();
  }
},
_showFolderError: function (folders) {
    var self = this, $error = self.$errorContainer, msg;
if (!folders) {
    return;
}
if (!self.isAjaxUpload) {
    self._clearFileInput();
}
msg = self.msgFoldersNotAllowed.replace('{n}', folders);
self._addError(msg);
self._setValidationError();
$error.fadeIn(self.fadeDelay);
self._raise('filefoldererror', [folders, msg]);
},
_showFileError: function (msg, params, event) {
    var self = this, $error = self.$errorContainer, ev = event || 'fileuploaderror',
    fId = params && params.fileId || '', e = params && params.id ?
    '<li data-thumb-id="' + params.id + '" data-file-id="' + fId + '">' + msg + '</li>' : '<li>' + msg + '</li>';

if ($error.find('ul').length === 0) {
    self._addError('<ul>' + e + '</ul>');
} else {
      $error.find('ul').append(e);
  }
$error.fadeIn(self.fadeDelay);
self._raise(ev, [params, msg]);
self._setValidationError('file-input-new');
return true;
},
_showError: function (msg, params, event) {
    var self = this, $error = self.$errorContainer, ev = event || 'fileerror';
params = params || {};
params.reader = self.reader;
self._addError(msg);
$error.fadeIn(self.fadeDelay);
self._raise(ev, [params, msg]);
if (!self.isAjaxUpload) {
    self._clearFileInput();
}
self._setValidationError('file-input-new');
self.$btnUpload.attr('disabled', true);
return true;
},
_noFilesError: function (params) {
    var self = this, label = self.minFileCount > 1 ? self.filePlural : self.fileSingle,
msg = self.msgFilesTooLess.replace('{n}', self.minFileCount).replace('{files}', label),
$error = self.$errorContainer;
    msg = '<li>' + msg + '</li>';
if ($error.find('ul').length === 0) {
    self._addError('<ul>' + msg + '</ul>');
} else {
      $error.find('ul').append(msg);
  }
self.isError = true;
self._updateFileDetails(0);
$error.fadeIn(self.fadeDelay);
self._raise('fileerror', [params, msg]);
self._clearFileInput();
self._setValidationError();
},
_parseError: function (operation, jqXHR, errorThrown, fileName) {
/** @namespace jqXHR.responseJSON */
    var self = this, errMsg = $.trim(errorThrown + ''), textPre, errText, text;
    errText = jqXHR.responseJSON && jqXHR.responseJSON.error ? jqXHR.responseJSON.error.toString() : '';
    text = errText ? errText : jqXHR.responseText;
if (self.cancelling && self.msgUploadAborted) {
    errMsg = self.msgUploadAborted;
}
if (self.showAjaxErrorDetails && text) {
if (errText) {
    errMsg = $.trim(errText + '');
} else {
      text = $.trim(text.replace(/\n\s*\n/g, '\n'));
      textPre = text.length ? '<pre>' + text + '</pre>' : '';
      errMsg += errMsg ? textPre : text;
  }
}
if (!errMsg) {
    errMsg = self.msgAjaxError.replace('{operation}', operation);
}
self.cancelling = false;
return fileName ? '<b>' + fileName + ': </b>' + errMsg : errMsg;
},
_parseFileType: function (type, name) {
    var self = this, isValid, vType, cat, i, types = self.allowedPreviewTypes || [];
if (type === 'application/text-plain') {
    return 'text';
}
for (i = 0; i < types.length; i++) {
    cat = types[i];
    isValid = self.fileTypeSettings[cat];
    vType = isValid(type, name) ? cat : '';
if (!$h.isEmpty(vType)) {
    return vType;
}
}
return 'other';
},
_getPreviewIcon: function (fname) {
    var self = this, ext, out = null;
if (fname && fname.indexOf('.') > -1) {
    ext = fname.split('.').pop();
if (self.previewFileIconSettings) {
    out = self.previewFileIconSettings[ext] || self.previewFileIconSettings[ext.toLowerCase()] || null;
}
if (self.previewFileExtSettings) {
$.each(self.previewFileExtSettings, function (key, func) {
if (self.previewFileIconSettings[key] && func(ext)) {
    out = self.previewFileIconSettings[key];
//noinspection UnnecessaryReturnStatementJS
return;
}
});
}
}
return out || self.previewFileIcon;
},
_parseFilePreviewIcon: function (content, fname) {
    var self = this, icn = self._getPreviewIcon(fname), out = content;
if (out.indexOf('{previewFileIcon}') > -1) {
out = out.setTokens({'previewFileIconClass': self.previewFileIconClass, 'previewFileIcon': icn});
}
return out;
},
_raise: function (event, params) {
    var self = this, e = $.Event(event);
if (params !== undefined) {
    self.$element.trigger(e, params);
} else {
      self.$element.trigger(e);
  }
var out = e.result, isAborted = out === false;
if (e.isDefaultPrevented() || isAborted) {
    return false;
}
if (e.type === 'filebatchpreupload' && (out || isAborted)) {
    self.ajaxAborted = out;
    return false;
}
switch (event) {
// ignore these events
case 'filebatchuploadcomplete':
case 'filebatchuploadsuccess':
case 'fileuploaded':
case 'fileclear':
case 'filecleared':
case 'filereset':
case 'fileerror':
case 'filefoldererror':
case 'fileuploaderror':
case 'filebatchuploaderror':
case 'filedeleteerror':
case 'filecustomerror':
case 'filesuccessremove':
break;
// receive data response via `filecustomerror` event`
   default:
   if (!self.ajaxAborted) {
    self.ajaxAborted = out;
}
break;
}
return true;
},
_listenFullScreen: function (isFullScreen) {
    var self = this, $modal = self.$modal, $btnFull, $btnBord;
if (!$modal || !$modal.length) {
    return;
}
$btnFull = $modal && $modal.find('.btn-kv-fullscreen');
$btnBord = $modal && $modal.find('.btn-kv-borderless');
if (!$btnFull.length || !$btnBord.length) {
    return;
}
$btnFull.removeClass('active').attr('aria-pressed', 'false');
$btnBord.removeClass('active').attr('aria-pressed', 'false');
if (isFullScreen) {
    $btnFull.addClass('active').attr('aria-pressed', 'true');
} else {
      $btnBord.addClass('active').attr('aria-pressed', 'true');
  }
if ($modal.hasClass('file-zoom-fullscreen')) {
    self._maximizeZoomDialog();
} else {
if (isFullScreen) {
    self._maximizeZoomDialog();
} else {
      $btnBord.removeClass('active').attr('aria-pressed', 'false');
  }
}
},
_listen: function () {
    var self = this, $el = self.$element, $form = self.$form, $cont = self.$container, fullScreenEv;
self._handler($el, 'click', function (e) {
    self._initFileSelected();
if ($el.hasClass('file-no-browse')) {
if ($el.data('zoneClicked')) {
    $el.data('zoneClicked', false);
} else {
      e.preventDefault();
  }
}
});
self._handler($el, 'change', $.proxy(self._change, self));
self._handler(self.$caption, 'paste', $.proxy(self.paste, self));
if (self.showBrowse) {
    self._handler(self.$btnFile, 'click', $.proxy(self._browse, self));
self._handler(self.$btnFile, 'keypress', function (e) {
var keycode = e.keyCode || e.which
              if (keycode === 13) {
    $el.trigger('click');
    self._browse(e);
}
});
}
self._handler($cont.find('.fileinput-remove:not([disabled])'), 'click', $.proxy(self.clear, self));
self._handler($cont.find('.fileinput-cancel'), 'click', $.proxy(self.cancel, self));
self._handler($cont.find('.fileinput-pause'), 'click', $.proxy(self.pause, self));
self._initDragDrop();
self._handler($form, 'reset', $.proxy(self.clear, self));
if (!self.isAjaxUpload) {
    self._handler($form, 'submit', $.proxy(self._submitForm, self));
}
self._handler(self.$container.find('.fileinput-upload'), 'click', $.proxy(self._uploadClick, self));
self._handler($(window), 'resize', function () {
    self._listenFullScreen(screen.width === window.innerWidth && screen.height === window.innerHeight);
});
fullScreenEv = 'webkitfullscreenchange mozfullscreenchange fullscreenchange MSFullscreenChange';
self._handler($(document), fullScreenEv, function () {
    self._listenFullScreen($h.checkFullScreen());
});
self.$caption.on('focus', function () {
    self.$captionContainer.focus();
});
self._autoFitContent();
self._initClickable();
self._refreshPreview();
},
_autoFitContent: function () {
    var width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
    self = this, config = width < 400 ? (self.previewSettingsSmall || self.defaults.previewSettingsSmall) :
(self.previewSettings || self.defaults.previewSettings), sel;
$.each(config, function (cat, settings) {
    sel = '.file-preview-frame .file-preview-' + cat;
    self.$preview.find(sel + '.kv-preview-data,' + sel + ' .kv-preview-data').css(settings);
});
},
_scanDroppedItems: function (item, files, path) {
    path = path || '';
var self = this, i, dirReader, readDir, errorHandler = function (e) {
    self._log($h.logMessages.badDroppedFiles);
    self._log(e);
};
if (item.isFile) {
item.file(function (file) {
if (path) {
    file.newPath = path + file.name;
}
files.push(file);
}, errorHandler);
} else {
if (item.isDirectory) {
    dirReader = item.createReader();
readDir = function () {
dirReader.readEntries(function (entries) {
if (entries && entries.length > 0) {
    for (i = 0; i < entries.length; i++) {
    self._scanDroppedItems(entries[i], files, path + item.name + '/');
}
// recursively call readDir() again, since browser can only handle first 100 entries.
readDir();
}
return null;
}, errorHandler);
};
readDir();
}
}

},
_initDragDrop: function () {
    var self = this, $zone = self.$dropZone;
if (self.dropZoneEnabled && self.showPreview) {
    self._handler($zone, 'dragenter dragover', $.proxy(self._zoneDragEnter, self));
    self._handler($zone, 'dragleave', $.proxy(self._zoneDragLeave, self));
    self._handler($zone, 'drop', $.proxy(self._zoneDrop, self));
    self._handler($(document), 'dragenter dragover drop', self._zoneDragDropInit);
}
},
_zoneDragDropInit: function (e) {
    e.stopPropagation();
    e.preventDefault();
},
_zoneDragEnter: function (e) {
    var self = this, dt = e.originalEvent.dataTransfer, hasFiles = $.inArray('Files', dt.types) > -1;
    self._zoneDragDropInit(e);
if (self.isDisabled || !hasFiles) {
    dt.effectAllowed = 'none';
    dt.dropEffect = 'none';
    return;
}
dt.dropEffect = 'copy';
if (self._raise('fileDragEnter', {'sourceEvent': e, 'files': dt.types.Files})) {
    $h.addCss(self.$dropZone, 'file-highlighted');
}
},
_zoneDragLeave: function (e) {
    var self = this;
    self._zoneDragDropInit(e);
if (self.isDisabled) {
    return;
}
if (self._raise('fileDragLeave', {'sourceEvent': e})) {
    self.$dropZone.removeClass('file-highlighted');
}

},
_dropFiles: function (e, files) {
    var self = this, $el = self.$element;
if (!self.isAjaxUpload) {
    self.changeTriggered = true;
    $el.get(0).files = files;
setTimeout(function () {
    self.changeTriggered = false;
    $el.trigger('change' + self.namespace);
}, self.processDelay);
} else {
      self._change(e, files);
  }
self.$dropZone.removeClass('file-highlighted');
},
_zoneDrop: function (e) {
/** @namespace e.originalEvent.dataTransfer */
    var self = this, i, $el = self.$element, dt = e.originalEvent.dataTransfer,
    files = dt.files, items = dt.items, folders = $h.getDragDropFolders(items);
    e.preventDefault();
if (self.isDisabled || $h.isEmpty(files)) {
    return;
}
if (!self._raise('fileDragDrop', {'sourceEvent': e, 'files': files})) {
    return;
}
if (folders > 0) {
if (!self.isAjaxUpload) {
    self._showFolderError(folders);
    return;
}
files = [];
for (i = 0; i < items.length; i++) {
    var item = items[i].webkitGetAsEntry();
if (item) {
    self._scanDroppedItems(item, files);
}
}
setTimeout(function () {
    self._dropFiles(e, files);
}, 500);
} else {
      self._dropFiles(e, files);
  }
},
_uploadClick: function (e) {
    var self = this, $btn = self.$container.find('.fileinput-upload'), $form,
    isEnabled = !$btn.hasClass('disabled') && $h.isEmpty($btn.attr('disabled'));
if (e && e.isDefaultPrevented()) {
    return;
}
if (!self.isAjaxUpload) {
if (isEnabled && $btn.attr('type') !== 'submit') {
    $form = $btn.closest('form');
// downgrade to normal form submit if possible
   if ($form.length) {
    $form.trigger('submit');
}
e.preventDefault();
}
return;
}
e.preventDefault();
if (isEnabled) {
    self.upload();
}
},
_submitForm: function () {
    var self = this;
return self._isFileSelectionValid() && !self._abort({});
},
_clearPreview: function () {
    var self = this,
    $thumbs = self.showUploadedThumbs ? self.getFrames(':not(.file-preview-success)') : self.getFrames();
$thumbs.each(function () {
    var $thumb = $(this);
    $thumb.remove();
});
if (!self.getFrames().length || !self.showPreview) {
    self._resetUpload();
}
self._validateDefaultPreview();
},
_initSortable: function () {
    var self = this, $el = self.$preview, settings, selector = '.' + $h.SORT_CSS, $cont, $body = $('body'),
$html = $('html'), rev = self.reversePreviewOrder, Sortable = window.Sortable, beginGrab, endGrab;
if (!Sortable || $el.find(selector).length === 0) {
    return;
}
$cont = $body.length ? $body : ($html.length ? $html : self.$container);
beginGrab = function () {
    $cont.addClass('file-grabbing');
};
endGrab = function () {
    $cont.removeClass('file-grabbing');
};
settings = {
handle: '.drag-handle-init',
dataIdAttr: 'data-fileid',
animation: 600,
draggable: selector,
scroll: false,
forceFallback: true,
onChoose: beginGrab,
onStart: beginGrab,
onUnchoose: endGrab,
onEnd: endGrab,
onSort: function (e) {
    var oldIndex = e.oldIndex, newIndex = e.newIndex, i = 0, len = self.initialPreviewConfig.length,
    exceedsLast = len > 0 && newIndex >= len, $item = $(e.item), $first;
if (exceedsLast) {
    newIndex = len - 1;
}
self.initialPreview = $h.moveArray(self.initialPreview, oldIndex, newIndex, rev);
self.initialPreviewConfig = $h.moveArray(self.initialPreviewConfig, oldIndex, newIndex, rev);
self.previewCache.init();
self.getFrames('.file-preview-initial').each(function () {
    $(this).attr('data-fileindex', $h.INIT_FLAG + i);
    i++;
});
if (exceedsLast) {
    $first = self.getFrames(':not(.file-preview-initial):first');
if ($first.length) {
$item.slideUp(function () {
    $item.insertBefore($first).slideDown();
});
}
}
self._raise('filesorted', {
    previewId: $item.attr('id'),
'oldIndex': oldIndex,
'newIndex': newIndex,
stack: self.initialPreviewConfig
});
},
};
$.extend(true, settings, self.fileActionSettings.dragSettings);
if (self.sortable) {
    self.sortable.destroy();
}
self.sortable = Sortable.create($el[0], settings);
},
_setPreviewContent: function (content) {
    var self = this;
    $h.setHtml(self.$preview, content);
    self._autoFitContent();
},
_initPreviewImageOrientations: function () {
    var self = this, i = 0, canOrientImage = self.canOrientImage;
if (!self.autoOrientImageInitial && !canOrientImage) {
    return;
}
self.getFrames('.file-preview-initial').each(function () {
    var $thumb = $(this), $img, $zoomImg, id, config = self.initialPreviewConfig[i];
/** @namespace config.exif */
if (config && config.exif && config.exif.Orientation) {
    id = $thumb.attr('id');
    $img = $thumb.find('>.kv-file-content img');
    $zoomImg = self._getZoom(id, ' >.kv-file-content img');
if (canOrientImage) {
    $img.css('image-orientation', (self.autoOrientImageInitial ? 'from-image' : 'none'));
} else {
      self.setImageOrientation($img, $zoomImg, config.exif.Orientation, $thumb);
  }
}
i++;
});
},
_initPreview: function (isInit) {
    var self = this, cap = self.initialCaption || '', out;
if (!self.previewCache.count(true)) {
    self._clearPreview();
if (isInit) {
    self._setCaption(cap);
} else {
      self._initCaption();
  }
return;
}
out = self.previewCache.out();
cap = isInit && self.initialCaption ? self.initialCaption : out.caption;
self._setPreviewContent(out.content);
self._setInitThumbAttr();
self._setCaption(cap);
self._initSortable();
if (!$h.isEmpty(out.content)) {
    self.$container.removeClass('file-input-new');
}
self._initPreviewImageOrientations();
},
_getZoomButton: function (type) {
    var self = this, label = self.previewZoomButtonIcons[type], css = self.previewZoomButtonClasses[type],
    title = ' title="' + (self.previewZoomButtonTitles[type] || '') + '" ', tag = $h.isBs(5) ? 'bs-' : '',
params = title + (type === 'close' ? ' data-' + tag + 'dismiss="modal" aria-hidden="true"' : '');
if (type === 'fullscreen' || type === 'borderless' || type === 'toggleheader') {
    params += ' data-toggle="button" aria-pressed="false" autocomplete="off"';
}
return '<button type="button" class="' + css + ' btn-kv-' + type + '"' + params + '>' + label + '</button>';
},
_getModalContent: function () {
    var self = this;
return self._getLayoutTemplate('modal').setTokens({
'rtl': self.rtl ? ' kv-rtl' : '',
'zoomFrameClass': self.frameClass,
'prev': self._getZoomButton('prev'),
'next': self._getZoomButton('next'),
'toggleheader': self._getZoomButton('toggleheader'),
'fullscreen': self._getZoomButton('fullscreen'),
'borderless': self._getZoomButton('borderless'),
'close': self._getZoomButton('close')
});
},
_listenModalEvent: function (event) {
var self = this, $modal = self.$modal, getParams = function (e) {
return {
    sourceEvent: e,
    previewId: $modal.data('previewId'),
    modal: $modal
};
};
$modal.on(event + '.bs.modal', function (e) {
if (e.namespace !== 'bs.modal') {
    return;
}
var $btnFull = $modal.find('.btn-fullscreen'), $btnBord = $modal.find('.btn-borderless');
if ($modal.data('fileinputPluginId') === self.$element.attr('id')) {
    self._raise('filezoom' + event, getParams(e));
}
if (event === 'shown') {
    $btnBord.removeClass('active').attr('aria-pressed', 'false');
    $btnFull.removeClass('active').attr('aria-pressed', 'false');
if ($modal.hasClass('file-zoom-fullscreen')) {
    self._maximizeZoomDialog();
if ($h.checkFullScreen()) {
    $btnFull.addClass('active').attr('aria-pressed', 'true');
} else {
      $btnBord.addClass('active').attr('aria-pressed', 'true');
  }
}
}
});
},
_initZoom: function () {
    var self = this, $dialog, modalMain = self._getLayoutTemplate('modalMain'), modalId = '#' + $h.MODAL_ID;
    modalMain = self._setTabIndex('modal', modalMain);
if (!self.showPreview) {
    return;
}
self.$modal = $(modalId);
if (!self.$modal || !self.$modal.length) {
    $dialog = $h.createElement($h.cspBuffer.stash(modalMain)).insertAfter(self.$container);
    self.$modal = $(modalId).insertBefore($dialog);
    $h.cspBuffer.apply(self.$modal);
    $dialog.remove();
}
$h.initModal(self.$modal);
self.$modal.html($h.cspBuffer.stash(self._getModalContent()));
$h.cspBuffer.apply(self.$modal);
$.each($h.MODAL_EVENTS, function (key, event) {
    self._listenModalEvent(event);
});
},
_initZoomButtons: function () {
    var self = this, previewId = self.$modal.data('previewId') || '', $first, $last,
    thumbs = self.getFrames().toArray(), len = thumbs.length, $prev = self.$modal.find('.btn-kv-prev'),
    $next = self.$modal.find('.btn-kv-next');
if (thumbs.length < 2) {
    $prev.hide();
    $next.hide();
    return;
} else {
      $prev.show();
      $next.show();
  }
if (!len) {
    return;
}
$first = $(thumbs[0]);
$last = $(thumbs[len - 1]);
$prev.removeAttr('disabled');
$next.removeAttr('disabled');
if (self.reversePreviewOrder) {
[$prev, $next] = [$next, $prev]; // swap
}
if ($first.length && $first.attr('id') === previewId) {
    $prev.attr('disabled', true);
}
if ($last.length && $last.attr('id') === previewId) {
    $next.attr('disabled', true);
}
},
_maximizeZoomDialog: function () {
    var self = this, $modal = self.$modal, $head = $modal.find('.modal-header:visible'),
    $foot = $modal.find('.modal-footer:visible'), $body = $modal.find('.kv-zoom-body'),
    h = $(window).height(), diff = 0;
    $modal.addClass('file-zoom-fullscreen');
if ($head && $head.length) {
    h -= $head.outerHeight(true);
}
if ($foot && $foot.length) {
    h -= $foot.outerHeight(true);
}
if ($body && $body.length) {
    diff = $body.outerHeight(true) - $body.height();
    h -= diff;
}
$modal.find('.kv-zoom-body').height(h);
},
_resizeZoomDialog: function (fullScreen) {
    var self = this, $modal = self.$modal, $btnFull = $modal.find('.btn-kv-fullscreen'),
    $btnBord = $modal.find('.btn-kv-borderless');
if ($modal.hasClass('file-zoom-fullscreen')) {
    $h.toggleFullScreen(false);
if (!fullScreen) {
if (!$btnFull.hasClass('active')) {
    $modal.removeClass('file-zoom-fullscreen');
    self.$modal.find('.kv-zoom-body').css('height', self.zoomModalHeight);
} else {
      $btnFull.removeClass('active').attr('aria-pressed', 'false');
  }
} else {
if (!$btnFull.hasClass('active')) {
    $modal.removeClass('file-zoom-fullscreen');
    self._resizeZoomDialog(true);
if ($btnBord.hasClass('active')) {
    $btnBord.removeClass('active').attr('aria-pressed', 'false');
}
}
}
} else {
if (!fullScreen) {
    self._maximizeZoomDialog();
    return;
}
$h.toggleFullScreen(true);
}
$modal.focus();
},
_setZoomContent: function ($frame, navigate) {
    var self = this, $content, tmplt, body, title, $body, $dataEl, config, previewId = $frame.attr('id'),
$zoomPreview = self._getZoom(previewId), $modal = self.$modal, $tmp, desc, $desc,
$btnFull = $modal.find('.btn-kv-fullscreen'), $btnBord = $modal.find('.btn-kv-borderless'), cap, size,
$btnTogh = $modal.find('.btn-kv-toggleheader'), dir = navigate === 'prev' ? 'Left' : 'Right',
slideIn = 'slideIn' + dir, slideOut = 'slideOut' + dir, parsed, zoomData = $frame.data('zoom');
if (zoomData) {
    zoomData = decodeURIComponent(zoomData);
parsed = $zoomPreview.html().replace(self.zoomPlaceholder, '').setTokens({zoomData: zoomData});
$zoomPreview.html(parsed);
$frame.data('zoom', '');
$zoomPreview.attr('data-zoom', zoomData);
}
tmplt = $zoomPreview.attr('data-template') || 'generic';
$content = $zoomPreview.find('.kv-file-content');
body = $content.length ? '<span class="kv-spacer"></span>\n' + $content.html() : '';
cap = $frame.data('caption') || self.msgZoomModalHeading;
size = $frame.data('size') || '';
desc = $frame.data('description') || '';
$modal.find('.kv-zoom-caption').attr('title', cap).html(cap);
$modal.find('.kv-zoom-size').html(size);
$desc = $modal.find('.kv-zoom-description').hide();
if (desc) {
if (self.showDescriptionClose) {
desc = self._getLayoutTemplate('descriptionClose').setTokens({
    closeIcon: self.previewZoomButtonIcons.close
}) + '</button>' + desc;
}
$desc.show().html(desc);
if (self.showDescriptionClose) {
self._handler($modal.find('.kv-desc-hide'), 'click', function () {
$(this).parent().fadeOut('fast', function () {
    $modal.focus();
});
});
}
}
$body = $modal.find('.kv-zoom-body');
$modal.removeClass('kv-single-content');
if (navigate) {
    $tmp = $body.addClass('file-thumb-loading').clone().insertAfter($body);
    $h.setHtml($body, body).hide();
$tmp.fadeOut('fast', function () {
$body.fadeIn('fast', function () {
    $body.removeClass('file-thumb-loading');
});
$tmp.remove();
});
} else {
      $h.setHtml($body, body);
  }
config = self.previewZoomSettings[tmplt];
if (config) {
    $dataEl = $body.find('.kv-preview-data');
    $h.addCss($dataEl, 'file-zoom-detail');
$.each(config, function (key, value) {
    $dataEl.css(key, value);
if (($dataEl.attr('width') && key === 'width') || ($dataEl.attr('height') && key === 'height')) {
    $dataEl.removeAttr(key);
}
});
}
$modal.data('previewId', previewId);
self._handler($modal.find('.btn-kv-prev'), 'click', function () {
    self._zoomSlideShow('prev', previewId);
});
self._handler($modal.find('.btn-kv-next'), 'click', function () {
    self._zoomSlideShow('next', previewId);
});
self._handler($btnFull, 'click', function () {
    self._resizeZoomDialog(true);
});
self._handler($btnBord, 'click', function () {
    self._resizeZoomDialog(false);
});
self._handler($btnTogh, 'click', function () {
var $header = $modal.find('.modal-header'), $floatBar = $modal.find('.floating-buttons'),
ht, $actions = $header.find('.kv-zoom-actions'), resize = function (height) {
    var $body = self.$modal.find('.kv-zoom-body'), h = self.zoomModalHeight;
if ($modal.hasClass('file-zoom-fullscreen')) {
    h = $body.outerHeight(true);
if (!height) {
    h = h - $header.outerHeight(true);
}
}
$body.css('height', height ? h + height : h);
};
if ($header.is(':visible')) {
    ht = $header.outerHeight(true);
$header.slideUp('slow', function () {
    $actions.find('.btn').appendTo($floatBar);
resize(ht);
});
} else {
      $floatBar.find('.btn').appendTo($actions);
$header.slideDown('slow', function () {
resize();
});
}
$modal.focus();
});
self._handler($modal, 'keydown', function (e) {
    var key = e.which || e.keyCode, delay = self.processDelay + 1, $prev = $(this).find('.btn-kv-prev'),
$next = $(this).find('.btn-kv-next'), vId = $(this).data('previewId'), vPrevKey, vNextKey;
[vPrevKey, vNextKey] = self.rtl ? [39, 37] : [37, 39];
$.each({prev: [$prev, vPrevKey], next: [$next, vNextKey]}, function (direction, config) {
    var $btn = config[0], vKey = config[1];
if (key === vKey && $btn.length) {
    $modal.focus();
if (!$btn.attr('disabled')) {
    $btn.focus();
    self._zoomSlideShow(direction, vId);
setTimeout(function () {
if ($btn.attr('disabled')) {
    $modal.focus();
}
}, delay);
}
}
});
});
},
_showModal: function ($frame) {
    var self = this, $modal = self.$modal, bs5Modal;
if (!$frame || !$frame.length) {
    return;
}
$h.initModal($modal);
$h.setHtml($modal, self._getModalContent());
self._setZoomContent($frame);
$modal.data({backdrop: false});
//$modal.data('fileinputPluginId', self.$element.attr('id'));
$modal.modal('show');
self._initZoomButtons();
},
_zoomPreview: function ($btn) {
    var self = this, $frame;
if (!$btn.length) {
    throw 'Cannot zoom to detailed preview!';
}
$frame = $btn.closest($h.FRAMES);
self._showModal($frame);
},
_zoomSlideShow: function (dir, previewId) {
    var self = this, $btn = self.$modal.find('.kv-zoom-actions .btn-kv-' + dir), $targFrame, i, $thumb,
    thumbsData = self.getFrames().toArray(), thumbs = [], len = thumbsData.length, out;
if (self.reversePreviewOrder) {
    dir = dir === 'prev' ? 'next' : 'prev';
}
if ($btn.attr('disabled')) {
    return;
}
for (i = 0; i < len; i++) {
    $thumb = $(thumbsData[i]);
if ($thumb && $thumb.length && $thumb.find('.kv-file-zoom:visible').length) {
    thumbs.push(thumbsData[i]);
}
}
len = thumbs.length;
for (i = 0; i < len; i++) {
if ($(thumbs[i]).attr('id') === previewId) {
    out = dir === 'prev' ? i - 1 : i + 1;
    break;
}
}
if (out < 0 || out >= len || !thumbs[out]) {
    return;
}
$targFrame = $(thumbs[out]);
if ($targFrame.length) {
    self._setZoomContent($targFrame, dir);
}
self._initZoomButtons();
self._raise('filezoom' + dir, {'previewId': previewId, modal: self.$modal});
},
_initZoomButton: function () {
    var self = this;
self.$preview.find('.kv-file-zoom').each(function () {
    var $el = $(this);
self._handler($el, 'click', function () {
    self._zoomPreview($el);
});
});
},
_inputFileCount: function () {
    return this.$element[0].files.length;
},
_refreshPreview: function () {
    var self = this, files;
if ((!self._inputFileCount() && !self.isAjaxUpload) || !self.showPreview || !self.isPreviewable) {
    return;
}
if (self.isAjaxUpload) {
if (self.fileManager.count() > 0) {
files = $.extend(true, {}, self.getFileList());
self.fileManager.clear();
self._clearFileInput();
} else {
      files = self.$element[0].files;
  }
} else {
      files = self.$element[0].files;
  }
if (files && files.length) {
    self.readFiles(files);
    self._setFileDropZoneTitle();
}
},
_clearObjects: function ($el) {
$el.find('video audio').each(function () {
    this.pause();
    $(this).remove();
});
$el.find('img object div').each(function () {
    $(this).remove();
});
},
_clearFileInput: function () {
    var self = this, $el = self.$element, $srcFrm, $tmpFrm, $tmpEl;
if (!self._inputFileCount()) {
    return;
}
$srcFrm = $el.closest('form');
$tmpFrm = $(document.createElement('form'));
$tmpEl = $(document.createElement('div'));
$el.before($tmpEl);
if ($srcFrm.length) {
    $srcFrm.after($tmpFrm);
} else {
      $tmpEl.after($tmpFrm);
  }
$tmpFrm.append($el).trigger('reset');
$tmpEl.before($el).remove();
$tmpFrm.remove();
},
_resetUpload: function () {
    var self = this;
    self.uploadStartTime = $h.now();
    self.uploadCache = [];
    self.$btnUpload.removeAttr('disabled');
    self._setProgress(0);
    self._hideProgress();
    self._resetErrors(false);
    self._initAjax();
    self.fileManager.clearImages();
    self._resetCanvas();
if (self.overwriteInitial) {
    self.initialPreview = [];
    self.initialPreviewConfig = [];
    self.initialPreviewThumbTags = [];
self.previewCache.data = {
    content: [],
    config: [],
    tags: []
};
}
},
_resetCanvas: function () {
    var self = this;
if (self.imageCanvas && self.imageCanvasContext) {
    self.imageCanvasContext.clearRect(0, 0, self.imageCanvas.width, self.imageCanvas.height);
}
},
_hasInitialPreview: function () {
    var self = this;
    return !self.overwriteInitial && self.previewCache.count(true);
},
_resetPreview: function () {
    var self = this, out, cap, $div, hasSuc = self.showUploadedThumbs, hasErr = !self.removeFromPreviewOnError,
    includeProcessed = (hasSuc || hasErr) && self.isDuplicateError;
if (self.previewCache.count(true)) {
    out = self.previewCache.out();
if (includeProcessed) {
    $div = $h.createElement('').insertAfter(self.$container);
self.getFrames().each(function () {
    var $thumb = $(this);
if ((hasSuc && $thumb.hasClass('file-preview-success')) ||
(hasErr && $thumb.hasClass('file-preview-error'))) {
    $div.append($thumb);
}
});
}
self._setPreviewContent(out.content);
self._setInitThumbAttr();
cap = self.initialCaption ? self.initialCaption : out.caption;
self._setCaption(cap);
if (includeProcessed) {
    $div.contents().appendTo(self.$preview);
    $div.remove();
}
} else {
      self._clearPreview();
      self._initCaption();
  }
if (self.showPreview) {
    self._initZoom();
    self._initSortable();
}
self.isDuplicateError = false;
},
_clearDefaultPreview: function () {
    var self = this;
    self.$preview.find('.file-default-preview').remove();
},
_validateDefaultPreview: function () {
    var self = this;
if (!self.showPreview || $h.isEmpty(self.defaultPreviewContent)) {
    return;
}
self._setPreviewContent('<div class="file-default-preview">' + self.defaultPreviewContent + '</div>');
self.$container.removeClass('file-input-new');
self._initClickable();
},
_resetPreviewThumbs: function (isAjax) {
    var self = this, out;
if (isAjax) {
    self._clearPreview();
    self.clearFileStack();
    return;
}
if (self._hasInitialPreview()) {
    out = self.previewCache.out();
    self._setPreviewContent(out.content);
    self._setInitThumbAttr();
    self._setCaption(out.caption);
    self._initPreviewActions();
} else {
      self._clearPreview();
  }
},
_getLayoutTemplate: function (t) {
    var self = this, template = self.layoutTemplates[t];
if ($h.isEmpty(self.customLayoutTags)) {
    return template;
}
return $h.replaceTags(template, self.customLayoutTags);
},
_getPreviewTemplate: function (t) {
    var self = this, templates = self.previewTemplates, template = templates[t] || templates.other;
if ($h.isEmpty(self.customPreviewTags)) {
    return template;
}
return $h.replaceTags(template, self.customPreviewTags);
},
_getOutData: function (formdata, jqXHR, responseData, filesData) {
    var self = this;
jqXHR = jqXHR || {};
responseData = responseData || {};
filesData = filesData || self.fileManager.list();
return {
    formdata: formdata,
    files: filesData,
    filenames: self.filenames,
    filescount: self.getFilesCount(),
    extra: self._getExtraData(),
    response: responseData,
    reader: self.reader,
    jqXHR: jqXHR
};
},
_getMsgSelected: function (n, processing) {
    var self = this, strFiles = n === 1 ? self.fileSingle : self.filePlural;
    return n > 0 ? self.msgSelected.replace('{n}', n).replace('{files}', strFiles) :
(processing ? self.msgProcessing : self.msgNoFilesSelected);
},
_getFrame: function (id, skipWarning) {
    var self = this, $frame = $h.getFrameElement(self.$preview, id);
if (self.showPreview && !skipWarning && !$frame.length) {
self._log($h.logMessages.invalidThumb, {id: id});
}
return $frame;
},
_getZoom: function (id, selector) {
    var self = this, $frame = $h.getZoomElement(self.$preview, id, selector);
if (self.showPreview && !$frame.length) {
self._log($h.logMessages.invalidThumb, {id: id});
}
return $frame;
},
_getThumbs: function (css) {
    css = css || '';
    return this.getFrames(':not(.file-preview-initial)' + css);
},
_getThumbId: function (fileId) {
    var self = this;
    return self.previewInitId + '-' + fileId;
},
_getExtraData: function (fileId, index) {
    var self = this, data = self.uploadExtraData;
if (typeof self.uploadExtraData === 'function') {
    data = self.uploadExtraData(fileId, index);
}
return data;
},
_initXhr: function (xhrobj, fileId) {
var self = this, fm = self.fileManager, func = function (event) {
    var pct = 0, total = event.total, loaded = event.loaded || event.position,
    stats = fm.getUploadStats(fileId, loaded, total);
/** @namespace event.lengthComputable */
if (event.lengthComputable && !self.enableResumableUpload) {
    pct = $h.round(loaded / total * 100);
}
if (fileId) {
    self._setFileUploadStats(fileId, pct, stats);
} else {
      self._setProgress(pct, null, null, self._getStats(stats));
  }
self._raise('fileajaxprogress', [stats]);
};
if (xhrobj.upload) {
if (self.progressDelay) {
    func = $h.debounce(func, self.progressDelay);
}
xhrobj.upload.addEventListener('progress', func, false);
}
return xhrobj;
},
_initAjaxSettings: function () {
    var self = this;
self._ajaxSettings = $.extend(true, {}, self.ajaxSettings);
self._ajaxDeleteSettings = $.extend(true, {}, self.ajaxDeleteSettings);
},
_mergeAjaxCallback: function (funcName, srcFunc, type) {
    var self = this, settings = self._ajaxSettings, flag = self.mergeAjaxCallbacks, targFunc;
if (type === 'delete') {
    settings = self._ajaxDeleteSettings;
    flag = self.mergeAjaxDeleteCallbacks;
}
targFunc = settings[funcName];
if (flag && typeof targFunc === 'function') {
if (flag === 'before') {
settings[funcName] = function () {
    targFunc.apply(this, arguments);
    srcFunc.apply(this, arguments);
};
} else {
settings[funcName] = function () {
    srcFunc.apply(this, arguments);
    targFunc.apply(this, arguments);
};
}
} else {
      settings[funcName] = srcFunc;
  }
},
_ajaxSubmit: function (fnBefore, fnSuccess, fnComplete, fnError, formdata, fileId, index, vUrl) {
    var self = this, settings, defaults, data, ajaxTask;
if (!self._raise('filepreajax', [formdata, fileId, index])) {
    return;
}
formdata.append('initialPreview', JSON.stringify(self.initialPreview));
formdata.append('initialPreviewConfig', JSON.stringify(self.initialPreviewConfig));
formdata.append('initialPreviewThumbTags', JSON.stringify(self.initialPreviewThumbTags));
self._initAjaxSettings();
self._mergeAjaxCallback('beforeSend', fnBefore);
self._mergeAjaxCallback('success', fnSuccess);
self._mergeAjaxCallback('complete', fnComplete);
self._mergeAjaxCallback('error', fnError);
vUrl = vUrl || self.uploadUrlThumb || self.uploadUrl;
if (typeof vUrl === 'function') {
    vUrl = vUrl();
}
data = self._getExtraData(fileId, index) || {};
if (typeof data === 'object') {
$.each(data, function (key, value) {
    formdata.append(key, value);
});
}
defaults = {
xhr: function () {
    var xhrobj = $.ajaxSettings.xhr();
    return self._initXhr(xhrobj, fileId);
},
url: self._encodeURI(vUrl),
type: 'POST',
dataType: 'json',
data: formdata,
cache: false,
processData: false,
contentType: false
};
settings = $.extend(true, {}, defaults, self._ajaxSettings);
ajaxTask = self.taskManager.addTask(fileId + '-' + index, function () {
    var self = this.self, config, xhr;
    config = self.ajaxQueue.shift();
    xhr = $.ajax(config);
    self.ajaxRequests.push(xhr);
});
self.ajaxQueue.push(settings);
ajaxTask.runWithContext({self: self});
},
_mergeArray: function (prop, content) {
    var self = this, arr1 = $h.cleanArray(self[prop]), arr2 = $h.cleanArray(content);
    self[prop] = arr1.concat(arr2);
},
_initUploadSuccess: function (out, $thumb, allFiles) {
    var self = this, append, data, index, $div, content, config, tags, id, i;
if (!self.showPreview || typeof out !== 'object' || $.isEmptyObject(out)) {
    self._resetCaption();
    return;
}
if (out.initialPreview !== undefined && out.initialPreview.length > 0) {
    self.hasInitData = true;
    content = out.initialPreview || [];
    config = out.initialPreviewConfig || [];
    tags = out.initialPreviewThumbTags || [];
    append = out.append === undefined || out.append;
if (content.length > 0 && !$h.isArray(content)) {
    content = content.split(self.initialPreviewDelimiter);
}
if (content.length) {
    self._mergeArray('initialPreview', content);
    self._mergeArray('initialPreviewConfig', config);
    self._mergeArray('initialPreviewThumbTags', tags);
}
if ($thumb !== undefined) {
if (!allFiles) {
    index = self.previewCache.add(content[0], config[0], tags[0], append);
    data = self.previewCache.get(index, false);
    $div = $h.createElement(data).hide().appendTo($thumb);
$thumb.fadeOut('slow', function () {
    var $newThumb = $div.find('> .file-preview-frame');
if ($newThumb && $newThumb.length) {
    $newThumb.insertBefore($thumb).fadeIn('slow').css('display:inline-block');
}
self._initPreviewActions();
self._clearFileInput();
$thumb.remove();
$div.remove();
self._initSortable();
});
} else {
      id = $thumb.attr('id');
      i = self._getUploadCacheIndex(id);
if (i !== null) {
self.uploadCache[i] = {
    id: id,
    content: content[0],
    config: config[0] || [],
    tags: tags[0] || [],
    append: append
};
}
}
} else {
      self.previewCache.set(content, config, tags, append);
      self._initPreview();
      self._initPreviewActions();
  }
}
self._resetCaption();
},
_getUploadCacheIndex: function (id) {
    var self = this, i, len = self.uploadCache.length, config;
    for (i = 0; i < len; i++) {
    config = self.uploadCache[i];
if (config.id === id) {
    return i;
}
}
return null;
},
_initSuccessThumbs: function () {
    var self = this;
if (!self.showPreview) {
    return;
}
setTimeout(function () {
self._getThumbs($h.FRAMES + '.file-preview-success').each(function () {
    var $thumb = $(this), $remove = $thumb.find('.kv-file-remove');
    $remove.removeAttr('disabled');
self._handler($remove, 'click', function () {
    var id = $thumb.attr('id'),
out = self._raise('filesuccessremove', [id, $thumb.attr('data-fileindex')]);
    $h.cleanMemory($thumb);
if (out === false) {
    return;
}
self.$caption.attr('title', '');
$thumb.fadeOut('slow', function () {
    var fm = self.fileManager;
    $thumb.remove();
if (!self.getFrames().length) {
    self.reset();
}
});
});
});
}, self.processDelay);
},
_updateInitialPreview: function () {
    var self = this, u = self.uploadCache;
if (self.showPreview) {
$.each(u, function (key, setting) {
    self.previewCache.add(setting.content, setting.config, setting.tags, setting.append);
});
if (self.hasInitData) {
    self._initPreview();
    self._initPreviewActions();
}
}
},
_getThumbFileId: function ($thumb) {
    var self = this;
if (self.showPreview && $thumb !== undefined) {
    return $thumb.attr('data-fileid');
}
return null;
},
_getThumbFile: function ($thumb) {
    var self = this, id = self._getThumbFileId($thumb);
    return id ? self.fileManager.getFile(id) : null;
},
_uploadSingle: function (i, id, isBatch) {
var self = this, fm = self.fileManager, count = fm.count(), formdata = new FormData(), outData,
                                                                                       previewId = self._getThumbId(id), $thumb, chkComplete, $btnUpload, $btnDelete,
                                                                                                                                                           hasPostData = count > 0 || !$.isEmptyObject(self.uploadExtraData), uploadFailed, $prog, fnBefore,
                                                                                                                                                                                                                                             errMsg, fnSuccess, fnComplete, fnError, updateUploadLog, op = self.ajaxOperations.uploadThumb,
                                                                                                                                                                                                                                                                                                           fileObj = fm.getFile(id), params = {id: previewId, index: i, fileId: id},
fileName = self.fileManager.getFileName(id, true);
if (self.enableResumableUpload) { // not enabled for resumable uploads
return;
}
if (self.showPreview) {
    $thumb = fm.getThumb(id);
    $prog = $thumb.find('.file-thumb-progress');
    $btnUpload = $thumb.find('.kv-file-upload');
    $btnDelete = $thumb.find('.kv-file-remove');
    $prog.show();
}
if (count === 0 || !hasPostData || (self.showPreview && $btnUpload && $btnUpload.hasClass('disabled')) ||
                self._abort(params)) {
    return;
}
updateUploadLog = function () {
if (!uploadFailed) {
    fm.removeFile(id);
} else {
      fm.errors.push(id);
  }
fm.setProcessed(id);
if (fm.isProcessed()) {
    self.fileBatchCompleted = true;
chkComplete();
}
};
chkComplete = function () {
    var $initThumbs;
if (!self.fileBatchCompleted) {
    return;
}
setTimeout(function () {
    var triggerReset = fm.count() === 0, errCount = fm.errors.length;
    self._updateInitialPreview();
    self.unlock(triggerReset);
if (triggerReset) {
    self._clearFileInput();
}
$initThumbs = self.$preview.find('.file-preview-initial');
if (self.uploadAsync && $initThumbs.length) {
    $h.addCss($initThumbs, $h.SORT_CSS);
    self._initSortable();
}
self._raise('filebatchuploadcomplete', [fm.stack, self._getExtraData()]);
if (!self.retryErrorUploads || errCount === 0) {
    fm.clear();
}
self._setProgress(101);
self.ajaxAborted = false;
}, self.processDelay);
};
fnBefore = function (jqXHR) {
    outData = self._getOutData(formdata, jqXHR);
    fm.initStats(id);
    self.fileBatchCompleted = false;
if (!isBatch) {
    self.ajaxAborted = false;
}
if (self.showPreview) {
if (!$thumb.hasClass('file-preview-success')) {
    self._setThumbStatus($thumb, 'Loading');
    $h.addCss($thumb, 'file-uploading');
}
$btnUpload.attr('disabled', true);
$btnDelete.attr('disabled', true);
}
if (!isBatch) {
    self.lock();
}
if (fm.errors.indexOf(id) !== -1) {
    delete fm.errors[id];
}
self._raise('filepreupload', [outData, previewId, i, self._getThumbFileId($thumb)]);
$.extend(true, params, outData);
if (self._abort(params)) {
    jqXHR.abort();
if (!isBatch) {
    self._setThumbStatus($thumb, 'New');
    $thumb.removeClass('file-uploading');
    $btnUpload.removeAttr('disabled');
    $btnDelete.removeAttr('disabled');
}
self._setProgressCancelled();
}
};
fnSuccess = function (data, textStatus, jqXHR) {
    var pid = self.showPreview && $thumb.attr('id') ? $thumb.attr('id') : previewId;
    outData = self._getOutData(formdata, jqXHR, data);
    $.extend(true, params, outData);
setTimeout(function () {
if ($h.isEmpty(data) || $h.isEmpty(data.error)) {
if (self.showPreview) {
    self._setThumbStatus($thumb, 'Success');
    $btnUpload.hide();
    self._initUploadSuccess(data, $thumb, isBatch);
    self._setProgress(101, $prog);
}
self._raise('fileuploaded', [outData, pid, i, self._getThumbFileId($thumb)]);
if (!isBatch) {
    self.fileManager.remove($thumb);
} else {
  updateUploadLog();
  }
} else {
      uploadFailed = true;
      errMsg = self._parseError(op, jqXHR, self.msgUploadError, self.fileManager.getFileName(id));
      self._showFileError(errMsg, params);
      self._setPreviewError($thumb, true);
if (!self.retryErrorUploads) {
    $btnUpload.hide();
}
if (isBatch) {
updateUploadLog();
}
self._setProgress(101, self._getFrame(pid).find('.file-thumb-progress'),
self.msgUploadError);
}
}, self.processDelay);
};
fnComplete = function () {
if (self.showPreview) {
    $btnUpload.removeAttr('disabled');
    $btnDelete.removeAttr('disabled');
    $thumb.removeClass('file-uploading');
}
if (!isBatch) {
    self.unlock(false);
    self._clearFileInput();
} else {
  chkComplete();
  }
self._initSuccessThumbs();
};
fnError = function (jqXHR, textStatus, errorThrown) {
    errMsg = self._parseError(op, jqXHR, errorThrown, self.fileManager.getFileName(id));
    uploadFailed = true;
setTimeout(function () {
    var $prog;
if (isBatch) {
updateUploadLog();
}
self.fileManager.setProgress(id, 100);
self._setPreviewError($thumb, true);
if (!self.retryErrorUploads) {
    $btnUpload.hide();
}
$.extend(true, params, self._getOutData(formdata, jqXHR));
self._setProgress(101, self.$progress, self.msgAjaxProgressError.replace('{operation}', op));
$prog = self.showPreview && $thumb ? $thumb.find('.file-thumb-progress') : '';
self._setProgress(101, $prog, self.msgUploadError);
self._showFileError(errMsg, params);
}, self.processDelay);
};
self._setFileData(formdata, fileObj.file, fileName, id);
self._setUploadData(formdata, {fileId: id});
self._ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError, formdata, id, i);
},
_setFileData: function (formdata, file, fileName, fileId) {
    var self = this, preProcess = self.preProcessUpload;
if (preProcess && typeof preProcess === 'function') {
    formdata.append(self.uploadFileAttr, preProcess(fileId, file));
} else {
      formdata.append(self.uploadFileAttr, file, fileName);
  }
},
_checkBatchPreupload: function (outData, jqXHR) {
    var self = this, out = self._raise('filebatchpreupload', [outData]);
if (out) {
    return true;
}
self._abort(outData);
if (jqXHR) {
    jqXHR.abort();
}
self._getThumbs().each(function () {
    var $thumb = $(this), $btnUpload = $thumb.find('.kv-file-upload'),
$btnDelete = $thumb.find('.kv-file-remove');
if ($thumb.hasClass('file-preview-loading')) {
    self._setThumbStatus($thumb, 'New');
    $thumb.removeClass('file-uploading');
}
$btnUpload.removeAttr('disabled');
$btnDelete.removeAttr('disabled');
});
self._setProgressCancelled();
return false;
},
_uploadBatch: function () {
var self = this, fm = self.fileManager, total = fm.total(), params = {}, fnBefore, fnSuccess, fnError,
                                                                         fnComplete, hasPostData = total > 0 || !$.isEmptyObject(self.uploadExtraData), errMsg,
                                                                                                                                                        setAllUploaded, formdata = new FormData(), op = self.ajaxOperations.uploadBatch;
if (total === 0 || !hasPostData || self._abort(params)) {
    return;
}
setAllUploaded = function () {
    self.fileManager.clear();
    self._clearFileInput();
};
fnBefore = function (jqXHR) {
    self.lock();
    fm.initStats();
    var outData = self._getOutData(formdata, jqXHR);
    self.ajaxAborted = false;
if (self.showPreview) {
self._getThumbs().each(function () {
    var $thumb = $(this), $btnUpload = $thumb.find('.kv-file-upload'),
$btnDelete = $thumb.find('.kv-file-remove');
if (!$thumb.hasClass('file-preview-success')) {
    self._setThumbStatus($thumb, 'Loading');
    $h.addCss($thumb, 'file-uploading');
}
$btnUpload.attr('disabled', true);
$btnDelete.attr('disabled', true);
});
}
self._checkBatchPreupload(outData, jqXHR);
};
fnSuccess = function (data, textStatus, jqXHR) {
/** @namespace data.errorkeys */
    var outData = self._getOutData(formdata, jqXHR, data), key = 0,
    $thumbs = self._getThumbs(':not(.file-preview-success)'),
    keys = $h.isEmpty(data) || $h.isEmpty(data.errorkeys) ? [] : data.errorkeys;

if ($h.isEmpty(data) || $h.isEmpty(data.error)) {
    self._raise('filebatchuploadsuccess', [outData]);
setAllUploaded();
if (self.showPreview) {
$thumbs.each(function () {
    var $thumb = $(this);
    self._setThumbStatus($thumb, 'Success');
    $thumb.removeClass('file-uploading');
    $thumb.find('.kv-file-upload').hide().removeAttr('disabled');
});
self._initUploadSuccess(data);
} else {
      self.reset();
  }
self._setProgress(101);
} else {
if (self.showPreview) {
$thumbs.each(function () {
    var $thumb = $(this);
    $thumb.removeClass('file-uploading');
    $thumb.find('.kv-file-upload').removeAttr('disabled');
    $thumb.find('.kv-file-remove').removeAttr('disabled');
if (keys.length === 0 || $.inArray(key, keys) !== -1) {
    self._setPreviewError($thumb, true);
if (!self.retryErrorUploads) {
    $thumb.find('.kv-file-upload').hide();
    self.fileManager.remove($thumb);
}
} else {
      $thumb.find('.kv-file-upload').hide();
      self._setThumbStatus($thumb, 'Success');
      self.fileManager.remove($thumb);
  }
if (!$thumb.hasClass('file-preview-error') || self.retryErrorUploads) {
    key++;
}
});
self._initUploadSuccess(data);
}
errMsg = self._parseError(op, jqXHR, self.msgUploadError);
self._showFileError(errMsg, outData, 'filebatchuploaderror');
self._setProgress(101, self.$progress, self.msgUploadError);
}
};
fnComplete = function () {
    self.unlock();
    self._initSuccessThumbs();
    self._clearFileInput();
    self._raise('filebatchuploadcomplete', [self.fileManager.stack, self._getExtraData()]);
};
fnError = function (jqXHR, textStatus, errorThrown) {
    var outData = self._getOutData(formdata, jqXHR);
    errMsg = self._parseError(op, jqXHR, errorThrown);
    self._showFileError(errMsg, outData, 'filebatchuploaderror');
    self.uploadFileCount = total - 1;
if (!self.showPreview) {
    return;
}
self._getThumbs().each(function () {
    var $thumb = $(this);
    $thumb.removeClass('file-uploading');
if (self._getThumbFile($thumb)) {
    self._setPreviewError($thumb);
}
});
self._getThumbs().removeClass('file-uploading');
self._getThumbs(' .kv-file-upload').removeAttr('disabled');
self._getThumbs(' .kv-file-delete').removeAttr('disabled');
self._setProgress(101, self.$progress, self.msgAjaxProgressError.replace('{operation}', op));
};
var ctr = 0;
$.each(self.fileManager.stack, function (key, data) {
if (!$h.isEmpty(data.file)) {
    self._setFileData(formdata, data.file, (data.nameFmt || ('untitled_' + ctr)), key);
}
ctr++;
});
self._ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError, formdata);
},
_uploadExtraOnly: function () {
var self = this, params = {}, fnBefore, fnSuccess, fnComplete, fnError, formdata = new FormData(), errMsg,
                                                                                                   op = self.ajaxOperations.uploadExtra;
fnBefore = function (jqXHR) {
    self.lock();
    var outData = self._getOutData(formdata, jqXHR);
    self._setProgress(50);
    params.data = outData;
    params.xhr = jqXHR;
    self._checkBatchPreupload(outData, jqXHR);
};
fnSuccess = function (data, textStatus, jqXHR) {
    var outData = self._getOutData(formdata, jqXHR, data);
if ($h.isEmpty(data) || $h.isEmpty(data.error)) {
    self._raise('filebatchuploadsuccess', [outData]);
    self._clearFileInput();
    self._initUploadSuccess(data);
    self._setProgress(101);
} else {
      errMsg = self._parseError(op, jqXHR, self.msgUploadError);
      self._showFileError(errMsg, outData, 'filebatchuploaderror');
  }
};
fnComplete = function () {
    self.unlock();
    self._clearFileInput();
    self._raise('filebatchuploadcomplete', [self.fileManager.stack, self._getExtraData()]);
};
fnError = function (jqXHR, textStatus, errorThrown) {
    var outData = self._getOutData(formdata, jqXHR);
    errMsg = self._parseError(op, jqXHR, errorThrown);
    params.data = outData;
    self._showFileError(errMsg, outData, 'filebatchuploaderror');
    self._setProgress(101, self.$progress, self.msgAjaxProgressError.replace('{operation}', op));
};
self._ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError, formdata);
},
_deleteFileIndex: function ($frame) {
    var self = this, ind = $frame.attr('data-fileindex'), rev = self.reversePreviewOrder;
if (ind.substring(0, 5) === $h.INIT_FLAG) {
    ind = parseInt(ind.replace($h.INIT_FLAG, ''));
    self.initialPreview = $h.spliceArray(self.initialPreview, ind, rev);
    self.initialPreviewConfig = $h.spliceArray(self.initialPreviewConfig, ind, rev);
    self.initialPreviewThumbTags = $h.spliceArray(self.initialPreviewThumbTags, ind, rev);
self.getFrames().each(function () {
    var $nFrame = $(this), nInd = $nFrame.attr('data-fileindex');
if (nInd.substring(0, 5) === $h.INIT_FLAG) {
    nInd = parseInt(nInd.replace($h.INIT_FLAG, ''));
if (nInd > ind) {
    nInd--;
    $nFrame.attr('data-fileindex', $h.INIT_FLAG + nInd);
}
}
});
}
},
_resetCaption: function () {
    var self = this;
setTimeout(function () {
    var cap = '', n, chk = self.previewCache.count(true), len = self.fileManager.count(), file,
    incomplete = ':not(.file-preview-success):not(.file-preview-error)', cfg,
    hasThumb = self.showPreview && self.getFrames(incomplete).length;
if (len === 0 && chk === 0 && !hasThumb) {
    self.reset();
} else {
      n = chk + len;
if (n > 1) {
    cap = self._getMsgSelected(n);
} else {
if (len === 0) {
    cfg = self.initialPreviewConfig[0];
    cap = '';
if (cfg) {
    cap = cfg.caption || cfg.filename || ''
}
if (!cap) {
    cap = self._getMsgSelected(n);
}
} else {
      file = self.fileManager.getFirstFile();
      cap = file ? file.nameFmt : '_';
  }
}
self._setCaption(cap);
}
}, self.processDelay);
},
_initFileActions: function () {
    var self = this;
if (!self.showPreview) {
    return;
}
self._initZoomButton();
self.getFrames(' .kv-file-remove').each(function () {
    var $el = $(this), $frame = $el.closest($h.FRAMES), hasError, id = $frame.attr('id'),
ind = $frame.attr('data-fileindex'), status, fm = self.fileManager;
self._handler($el, 'click', function () {
    status = self._raise('filepreremove', [id, ind]);
if (status === false || !self._validateMinCount()) {
    return false;
}
hasError = $frame.hasClass('file-preview-error');
$h.cleanMemory($frame);
$frame.fadeOut('slow', function () {
    self.fileManager.remove($frame);
    self._clearObjects($frame);
    $frame.remove();
if (id && hasError) {
self.$errorContainer.find('li[data-thumb-id="' + id + '"]').fadeOut('fast', function () {
    $(this).remove();
if (!self._errorsExist()) {
    self._resetErrors();
}
});
}
self._clearFileInput();
self._resetCaption();
self._raise('fileremoved', [id, ind]);
});
});
});
self.getFrames(' .kv-file-upload').each(function () {
    var $el = $(this);
self._handler($el, 'click', function () {
    var $frame = $el.closest($h.FRAMES), fileId = self._getThumbFileId($frame);
    self._hideProgress();
if ($frame.hasClass('file-preview-error') && !self.retryErrorUploads) {
    return;
}
self._uploadSingle(self.fileManager.getIndex(fileId), fileId, false);
});
});
},
_initPreviewActions: function () {
var self = this, $preview = self.$preview, deleteExtraData = self.deleteExtraData || {},
btnRemove = $h.FRAMES + ' .kv-file-remove', settings = self.fileActionSettings,
                                                       origClass = settings.removeClass, errClass = settings.removeErrorClass,
                                                                                                    resetProgress = function () {
    var hasFiles = self.isAjaxUpload ? self.previewCache.count(true) : self._inputFileCount();
if (!self.getFrames().length && !hasFiles) {
    self._setCaption('');
    self.reset();
    self.initialCaption = '';
} else {
      self._resetCaption();
  }
};
self._initZoomButton();
$preview.find(btnRemove).each(function () {
    var $el = $(this), vUrl = $el.data('url') || self.deleteUrl, vKey = $el.data('key'), errMsg, fnBefore,
fnSuccess, fnError, op = self.ajaxOperations.deleteThumb;
if ($h.isEmpty(vUrl) || vKey === undefined) {
    return;
}
if (typeof vUrl === 'function') {
    vUrl = vUrl();
}
var $frame = $el.closest($h.FRAMES), cache = self.previewCache.data, settings, params, config,
                                             fileName, extraData, index = $frame.attr('data-fileindex');
index = parseInt(index.replace($h.INIT_FLAG, ''));
config = $h.isEmpty(cache.config) && $h.isEmpty(cache.config[index]) ? null : cache.config[index];
extraData = $h.isEmpty(config) || $h.isEmpty(config.extra) ? deleteExtraData : config.extra;
fileName = config && (config.filename || config.caption) || '';
if (typeof extraData === 'function') {
    extraData = extraData();
}
params = {id: $el.attr('id'), key: vKey, extra: extraData};
fnBefore = function (jqXHR) {
    self.ajaxAborted = false;
    self._raise('filepredelete', [vKey, jqXHR, extraData]);
if (self._abort()) {
    jqXHR.abort();
} else {
      $el.removeClass(errClass);
      $h.addCss($frame, 'file-uploading');
      $h.addCss($el, 'disabled ' + origClass);
  }
};
fnSuccess = function (data, textStatus, jqXHR) {
    var n, cap;
if (!$h.isEmpty(data) && !$h.isEmpty(data.error)) {
    params.jqXHR = jqXHR;
    params.response = data;
    errMsg = self._parseError(op, jqXHR, self.msgDeleteError, fileName);
    self._showFileError(errMsg, params, 'filedeleteerror');
    $frame.removeClass('file-uploading');
    $el.removeClass('disabled ' + origClass).addClass(errClass);
resetProgress();
    return;
}
$frame.removeClass('file-uploading').addClass('file-deleted');
$frame.fadeOut('slow', function () {
    index = parseInt(($frame.attr('data-fileindex')).replace($h.INIT_FLAG, ''));
    self.previewCache.unset(index);
    self._deleteFileIndex($frame);
    n = self.previewCache.count(true);
    cap = n > 0 ? self._getMsgSelected(n) : '';
    self._setCaption(cap);
    self._raise('filedeleted', [vKey, jqXHR, extraData]);
    self._clearObjects($frame);
    $frame.remove();
resetProgress();
});
};
fnError = function (jqXHR, textStatus, errorThrown) {
    var errMsg = self._parseError(op, jqXHR, errorThrown, fileName);
    params.jqXHR = jqXHR;
params.response = {};
self._showFileError(errMsg, params, 'filedeleteerror');
$frame.removeClass('file-uploading');
$el.removeClass('disabled ' + origClass).addClass(errClass);
resetProgress();
};
self._initAjaxSettings();
self._mergeAjaxCallback('beforeSend', fnBefore, 'delete');
self._mergeAjaxCallback('success', fnSuccess, 'delete');
self._mergeAjaxCallback('error', fnError, 'delete');
settings = $.extend(true, {}, {
url: self._encodeURI(vUrl),
type: 'POST',
dataType: 'json',
data: $.extend(true, {}, {key: vKey}, extraData)
}, self._ajaxDeleteSettings);
self._handler($el, 'click', function () {
if (!self._validateMinCount()) {
    return false;
}
self.ajaxAborted = false;
self._raise('filebeforedelete', [vKey, extraData]);
if (self.ajaxAborted instanceof Promise) {
self.ajaxAborted.then(function (result) {
if (!result) {
    $.ajax(settings);
}
});
} else {
if (!self.ajaxAborted) {
    $.ajax(settings);
}
}
});
});
},
_hideFileIcon: function () {
    var self = this;
if (self.overwriteInitial) {
    self.$captionContainer.removeClass('icon-visible');
}
},
_showFileIcon: function () {
    var self = this;
    $h.addCss(self.$captionContainer, 'icon-visible');
},
_getSize: function (bytes, sizes) {
    var self = this, size = parseFloat(bytes), i, func = self.fileSizeGetter, out;
if (!$.isNumeric(bytes) || !$.isNumeric(size)) {
    return '';
}
if (typeof func === 'function') {
    out = func(size);
} else {
if (size === 0) {
    out = '0.00 B';
} else {
if (!sizes) {
    sizes = self.sizeUnits;
}
i = Math.floor(Math.log(size) / Math.log(self.bytesToKB));
out = (size / Math.pow(self.bytesToKB, i)).toFixed(2) + ' ' + sizes[i];
}
}
return self._getLayoutTemplate('size').replace('{sizeText}', out);
},
_getFileType: function (ftype) {
    var self = this;
    return self.mimeTypeAliases[ftype] || ftype;
},
_generatePreviewTemplate: function (
cat,
data,
fname,
ftype,
previewId,
fileId,
isError,
size,
frameClass,
foot,
ind,
templ,
attrs,
zoomData
) {
    var self = this, caption = self.slug(fname), prevContent, zoomContent = '', styleAttribs = '',
    screenW = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
    config, title = caption, alt = caption, typeCss = 'type-default', getContent,
    footer = foot || self._renderFileFooter(cat, caption, size, 'auto', isError),
    forcePrevIcon = self.preferIconicPreview, forceZoomIcon = self.preferIconicZoomPreview,
    newCat = forcePrevIcon ? 'other' : cat;
    config = screenW < 400 ? (self.previewSettingsSmall[newCat] || self.defaults.previewSettingsSmall[newCat]) :
(self.previewSettings[newCat] || self.defaults.previewSettings[newCat]);
if (config) {
$.each(config, function (key, val) {
    styleAttribs += key + ':' + val + ';';
});
}
getContent = function (vCat, vData, zoom, frameCss, vZoomData) {
    var id = zoom ? 'zoom-' + previewId : previewId, tmplt = self._getPreviewTemplate(vCat),
css = (frameClass || '') + ' ' + frameCss, tokens;
if (self.frameClass) {
    css = self.frameClass + ' ' + css;
}
if (zoom) {
    css = css.replace(' ' + $h.SORT_CSS, '');
}
tmplt = self._parseFilePreviewIcon(tmplt, fname);
if (cat === 'object' && !ftype) {
$.each(self.defaults.fileTypeSettings, function (key, func) {
if (key === 'object' || key === 'other') {
    return;
}
if (func(fname, ftype)) {
    typeCss = 'type-' + key;
}
});
}
if (!$h.isEmpty(attrs)) {
if (attrs.title !== undefined && attrs.title !== null) {
    title = attrs.title;
}
if (attrs.alt !== undefined && attrs.alt !== null) {
    title = attrs.alt;
}
}
tokens = {
'previewId': id,
'caption': caption,
'title': title,
'alt': alt,
'frameClass': css,
'type': self._getFileType(ftype),
'fileindex': ind,
'fileid': fileId || '',
'typeCss': typeCss,
'footer': footer,
'data': zoom && vZoomData ? self.zoomPlaceholder + '{zoomData}' : vData,
'template': templ || cat,
'style': styleAttribs ? 'style="' + styleAttribs + '"' : '',
'zoomData': vZoomData ? encodeURIComponent(vZoomData) : ''
};
if (zoom) {
    tokens.zoomCache = '';
    tokens.zoomData = '{zoomData}';
}
return tmplt.setTokens(tokens);
};
ind = ind || previewId.slice(previewId.lastIndexOf('-') + 1);
if (self.fileActionSettings.showZoom) {
    zoomContent = getContent((forceZoomIcon ? 'other' : cat), data, true, 'kv-zoom-thumb', zoomData);
}
zoomContent = '\n' + self._getLayoutTemplate('zoomCache').replace('{zoomContent}', zoomContent);
if (typeof self.sanitizeZoomCache === 'function') {
    zoomContent = self.sanitizeZoomCache(zoomContent);
}
prevContent = getContent((forcePrevIcon ? 'other' : cat), data, false, 'kv-preview-thumb', zoomData);
return prevContent.setTokens({zoomCache: zoomContent});
},
_addToPreview: function ($preview, content) {
    var self = this, $el;
    content = $h.cspBuffer.stash(content);
    $el = self.reversePreviewOrder ? $preview.prepend(content) : $preview.append(content);
    $h.cspBuffer.apply($preview);
    return $el;
},
_previewDefault: function (file, isDisabled) {
    var self = this, $preview = self.$preview;
if (!self.showPreview) {
    return;
}
var fname = $h.getFileName(file), ftype = file ? file.type : '', content, size = file.size || 0,
caption = self._getFileName(file, ''), isError = isDisabled === true && !self.isAjaxUpload,
                                                                         data = $h.createObjectURL(file), fileId = self.fileManager.getId(file),
previewId = self._getThumbId(fileId);
self._clearDefaultPreview();
content = self._generatePreviewTemplate('other', data, fname, ftype, previewId, fileId, isError, size);
self._addToPreview($preview, content);
self._setThumbAttr(previewId, caption, size);
if (isDisabled === true && self.isAjaxUpload) {
    self._setThumbStatus(self._getFrame(previewId), 'Error');
}
},
_previewFile: function (i, file, theFile, data, fileInfo) {
if (!this.showPreview) {
    return;
}
var self = this, fname = $h.getFileName(file), ftype = fileInfo.type, caption = fileInfo.name,
                                                                                cat = self._parseFileType(ftype, fname), content, $preview = self.$preview, fsize = file.size || 0,
iData = cat === 'image' ? theFile.target.result : data, fm = self.fileManager,
                                                             fileId = fm.getId(file), previewId = self._getThumbId(fileId);
/** @namespace window.DOMPurify */
content = self._generatePreviewTemplate(cat, iData, fname, ftype, previewId, fileId, false, fsize);
self._clearDefaultPreview();
self._addToPreview($preview, content);
var $thumb = self._getFrame(previewId);
self._validateImageOrientation($thumb.find('img'), file, previewId, fileId, caption, ftype, fsize, iData);
self._setThumbAttr(previewId, caption, fsize);
self._initSortable();
},
_setThumbAttr: function (id, caption, size, description) {
    var self = this, $frame = self._getFrame(id);
if ($frame.length) {
    size = size && size > 0 ? self._getSize(size) : '';
$frame.data({'caption': caption, 'size': size, 'description': description || ''});
}
},
_setInitThumbAttr: function () {
    var self = this, data = self.previewCache.data, len = self.previewCache.count(true), config,
    caption, size, description, previewId;
if (len === 0) {
    return;
}
for (var i = 0; i < len; i++) {
    config = data.config[i];
    previewId = self.previewInitId + '-' + $h.INIT_FLAG + i;
    caption = $h.ifSet('caption', config, $h.ifSet('filename', config));
    size = $h.ifSet('size', config);
    description = $h.ifSet('description', config);
    self._setThumbAttr(previewId, caption, size, description);
}
},
_slugDefault: function (text) {
// noinspection RegExpRedundantEscape
return $h.isEmpty(text, true) ? '' : String(text).replace(/[\[\]\/\{}:;#%=\(\)\*\+\?\\\^\$\|<>&"']/g, '_');
},
_updateFileDetails: function (numFiles) {
    var self = this, $el = self.$element, label, n, log, nFiles, file,
    name = ($h.isIE(9) && $h.findFileName($el.val())) || ($el[0].files[0] && $el[0].files[0].name);
if (!name && self.fileManager.count() > 0) {
    file = self.fileManager.getFirstFile();
    label = file.nameFmt;
} else {
      label = name ? self.slug(name) : '_';
  }
n = self.isAjaxUpload ? self.fileManager.count() : numFiles;
nFiles = self.previewCache.count(true) + n;
log = n === 1 ? label : self._getMsgSelected(nFiles, !self.isAjaxUpload && !self.isError);
if (self.isError) {
    self.$previewContainer.removeClass('file-thumb-loading');
    self._initCapStatus();
    self.$previewStatus.html('');
    self.$captionContainer.removeClass('icon-visible');
} else {
      self._showFileIcon();
  }
self._setCaption(log, self.isError);
self.$container.removeClass('file-input-new file-input-ajax-new');
self._raise('fileselect', [numFiles, label]);
if (self.previewCache.count(true)) {
    self._initPreviewActions();
}
},
_setThumbStatus: function ($thumb, status) {
    var self = this;
if (!self.showPreview) {
    return;
}
var icon = 'indicator' + status, msg = icon + 'Title',
css = 'file-preview-' + status.toLowerCase(),
$indicator = $thumb.find('.file-upload-indicator'),
config = self.fileActionSettings;
$thumb.removeClass('file-preview-success file-preview-error file-preview-paused file-preview-loading');
if (status === 'Success') {
    $thumb.find('.file-drag-handle').remove();
}
$h.setHtml($indicator, config[icon]);
$indicator.attr('title', config[msg]);
$thumb.addClass(css);
if (status === 'Error' && !self.retryErrorUploads) {
    $thumb.find('.kv-file-upload').attr('disabled', true);
}
},
_setProgressCancelled: function () {
    var self = this;
    self._setProgress(101, self.$progress, self.msgCancelled);
},
_setProgress: function (p, $el, error, stats) {
    var self = this;
    $el = $el || self.$progress;
if (!$el.length) {
    return;
}
var pct = Math.min(p, 100), out, pctLimit = self.progressUploadThreshold,
                                            t = p <= 100 ? self.progressTemplate : self.progressCompleteTemplate,
                                                           template = pct < 100 ? self.progressTemplate :
(error ? (self.paused ? self.progressPauseTemplate : self.progressErrorTemplate) : t);
if (p >= 100) {
    stats = '';
}
if (!$h.isEmpty(template)) {
if (pctLimit && pct > pctLimit && p <= 100) {
out = template.setTokens({'percent': pctLimit, 'status': self.msgUploadThreshold});
} else {
out = template.setTokens({'percent': pct, 'status': (p > 100 ? self.msgUploadEnd : pct + '%')});
}
stats = stats || '';
out = out.setTokens({stats: stats});
$h.setHtml($el, out);
if (error) {
    $h.setHtml($el.find('[role="progressbar"]'), error);
}
}
},
_hasFiles: function () {
    var el = this.$element[0];
    return !!(el && el.files && el.files.length);
},
_setFileDropZoneTitle: function () {
    var self = this, $zone = self.$container.find('.file-drop-zone'), title = self.dropZoneTitle, strFiles;
if (self.isClickable) {
    strFiles = $h.isEmpty(self.$element.attr('multiple')) ? self.fileSingle : self.filePlural;
    title += self.dropZoneClickTitle.replace('{files}', strFiles);
}
$zone.find('.' + self.dropZoneTitleClass).remove();
if (!self.showPreview || $zone.length === 0 || self.fileManager.count() > 0 || !self.dropZoneEnabled ||
                self.previewCache.count() > 0 || (!self.isAjaxUpload && self._hasFiles())) {
    return;
}
if ($zone.find($h.FRAMES).length === 0 && $h.isEmpty(self.defaultPreviewContent)) {
    $zone.prepend('<div class="' + self.dropZoneTitleClass + '">' + title + '</div>');
}
self.$container.removeClass('file-input-new');
$h.addCss(self.$container, 'file-input-ajax-new');
},
_getStats: function (stats) {
    var self = this, pendingTime, t;
if (!self.showUploadStats || !stats || !stats.bitrate) {
    return '';
}
t = self._getLayoutTemplate('stats');
pendingTime = (!stats.elapsed || !stats.bps) ? self.msgCalculatingTime :
                                               self.msgPendingTime.setTokens({time: $h.getElapsed(Math.ceil(stats.pendingBytes / stats.bps))});

return t.setTokens({
    uploadSpeed: stats.bitrate,
    pendingTime: pendingTime
});
},
_setResumableProgress: function (pct, stats, $thumb) {
    var self = this, rm = self.resumableManager, obj = $thumb ? rm : self,
$prog = $thumb ? $thumb.find('.file-thumb-progress') : null;
if (obj.lastProgress === 0) {
    obj.lastProgress = pct;
}
if (pct < obj.lastProgress) {
    pct = obj.lastProgress;
}
self._setProgress(pct, $prog, null, self._getStats(stats));
obj.lastProgress = pct;
},
_toggleResumableProgress: function (template, message) {
    var self = this, $progress = self.$progress;
if ($progress && $progress.length) {
$h.setHtml($progress, template.setTokens({
    percent: 101,
    status: message,
    stats: ''
}));
}
},
_setFileUploadStats: function (id, pct, stats) {
    var self = this, $prog = self.$progress;
if (!self.showPreview && (!$prog || !$prog.length)) {
    return;
}
var fm = self.fileManager, rm = self.resumableManager, $thumb = fm.getThumb(id), pctTot,
                                                                                 totUpSize = 0, totSize = fm.getTotalSize(), totStats = $.extend(true, {}, stats);
if (self.enableResumableUpload) {
    var loaded = stats.loaded, currUplSize = rm.getUploadedSize(), currTotSize = rm.file.size, totLoaded;
    loaded += currUplSize;
    totLoaded = fm.uploadedSize + loaded;
    pct = $h.round(100 * loaded / currTotSize);
    stats.pendingBytes = currTotSize - currUplSize;
    self._setResumableProgress(pct, stats, $thumb);
    pctTot = Math.floor(100 * totLoaded / totSize);
    totStats.pendingBytes = totSize - totLoaded;
    self._setResumableProgress(pctTot, totStats);
} else {
      fm.setProgress(id, pct);
      $prog = $thumb && $thumb.length ? $thumb.find('.file-thumb-progress') : null;
      self._setProgress(pct, $prog, null, self._getStats(stats));
$.each(fm.stats, function (id, cfg) {
    totUpSize += cfg.loaded;
});
totStats.pendingBytes = totSize - totUpSize;
pctTot = $h.round(totUpSize / totSize * 100);
self._setProgress(pctTot, null, null, self._getStats(totStats));
}
},
_validateMinCount: function () {
    var self = this, len = self.isAjaxUpload ? self.fileManager.count() : self._inputFileCount();
if (self.validateInitialCount && self.minFileCount > 0 && self._getFileCount(len - 1) < self.minFileCount) {
self._noFilesError({});
return false;
}
return true;
},
_getFileCount: function (fileCount, includeInitial) {
    var self = this, addCount = 0;
if (includeInitial === undefined) {
    includeInitial = self.validateInitialCount && !self.overwriteInitial;
}
if (includeInitial) {
    addCount = self.previewCache.count(true);
    fileCount += addCount;
}
return fileCount;
},
_getFileId: function (file) {
    return $h.getFileId(file, this.generateFileId);
},
_getFileName: function (file, defaultValue) {
    var self = this, fileName = $h.getFileName(file);
    return fileName ? self.slug(fileName) : defaultValue;
},
_getFileNames: function (skipNull) {
    var self = this;
return self.filenames.filter(function (n) {
    return (skipNull ? n !== undefined : n !== undefined && n !== null);
});
},
_setPreviewError: function ($thumb, keepFile) {
    var self = this, removeFrame = self.removeFromPreviewOnError && !self.retryErrorUploads;
if (!keepFile || removeFrame) {
    self.fileManager.remove($thumb);
}
if (!self.showPreview) {
    return;
}
if (removeFrame) {
    $thumb.remove();
    return;
} else {
      self._setThumbStatus($thumb, 'Error');
  }
self._refreshUploadButton($thumb);
},
_refreshUploadButton: function ($thumb) {
    var self = this, $btn = $thumb.find('.kv-file-upload'), cfg = self.fileActionSettings,
    icon = cfg.uploadIcon, title = cfg.uploadTitle;
if (!$btn.length) {
    return;
}
if (self.retryErrorUploads) {
    icon = cfg.uploadRetryIcon;
    title = cfg.uploadRetryTitle;
}
$btn.attr('title', title);
$h.setHtml($btn, icon);
},
_checkDimensions: function (i, chk, $img, $thumb, fname, type, params) {
    var self = this, msg, dim, tag = chk === 'Small' ? 'min' : 'max', limit = self[tag + 'Image' + type],
$imgEl, isValid;
if ($h.isEmpty(limit) || !$img.length) {
    return;
}
$imgEl = $img[0];
dim = (type === 'Width') ? $imgEl.naturalWidth || $imgEl.width : $imgEl.naturalHeight || $imgEl.height;
isValid = chk === 'Small' ? dim >= limit : dim <= limit;
if (isValid) {
    return;
}
msg = self['msgImage' + type + chk].setTokens({'name': fname, 'size': limit});
self._showFileError(msg, params);
self._setPreviewError($thumb);
},
_getExifObj: function (data) {
    var self = this, exifObj, error = $h.logMessages.exifWarning;
if (data.slice(0, 23) !== 'data:image/jpeg;base64,' && data.slice(0, 22) !== 'data:image/jpg;base64,') {
    exifObj = null;
    return;
}
try {
    exifObj = window.piexif ? window.piexif.load(data) : null;
} catch (err) {
    exifObj = null;
    error = err && err.message || '';
}
if (!exifObj && self.showExifErrorLog) {
self._log($h.logMessages.badExifParser, {details: error});
}
return exifObj;
},
setImageOrientation: function ($img, $zoomImg, value, $thumb) {
    var self = this, invalidImg = !$img || !$img.length, invalidZoomImg = !$zoomImg || !$zoomImg.length, $mark,
    isHidden = false, $div, zoomOnly = invalidImg && $thumb && $thumb.attr('data-template') === 'image', ev;
if (invalidImg && invalidZoomImg) {
    return;
}
ev = 'load.fileinputimageorient';
if (zoomOnly) {
    $img = $zoomImg;
    $zoomImg = null;
    $img.css(self.previewSettings.image);
    $div = $(document.createElement('div')).appendTo($thumb.find('.kv-file-content'));
    $mark = $(document.createElement('span')).insertBefore($img);
    $img.css('visibility', 'hidden').removeClass('file-zoom-detail').appendTo($div);
} else {
      isHidden = !$img.is(':visible');
  }
$img.off(ev).on(ev, function () {
if (isHidden) {
    self.$preview.removeClass('hide-content');
    $thumb.find('.kv-file-content').css('visibility', 'hidden');
}
var img = $img[0], zoomImg = $zoomImg && $zoomImg.length ? $zoomImg[0] : null,
                                                                       h = img.offsetHeight, w = img.offsetWidth, r = $h.getRotation(value);
if (isHidden) {
    $thumb.find('.kv-file-content').css('visibility', 'visible');
    self.$preview.addClass('hide-content');
}
$img.data('orientation', value);
if (zoomImg) {
    $zoomImg.data('orientation', value);
}
if (value < 5) {
    $h.setTransform(img, r);
    $h.setTransform(zoomImg, r);
    return;
}
var offsetAngle = Math.atan(w / h), origFactor = Math.sqrt(Math.pow(h, 2) + Math.pow(w, 2)),
scale = !origFactor ? 1 : (h / Math.cos(Math.PI / 2 + offsetAngle)) / origFactor,
                                                                      s = ' scale(' + Math.abs(scale) + ')';
$h.setTransform(img, r + s);
$h.setTransform(zoomImg, r + s);
if (zoomOnly) {
    $img.css('visibility', 'visible').insertAfter($mark).addClass('file-zoom-detail');
    $mark.remove();
    $div.remove();
}
});
},
_validateImageOrientation: function ($img, file, previewId, fileId, caption, ftype, fsize, iData) {
    var self = this, exifObj = null, value, autoOrientImage = self.autoOrientImage, selector;
    exifObj = self._getExifObj(iData);
if (self.canOrientImage) {
    $img.css('image-orientation', (autoOrientImage ? 'from-image' : 'none'));
    self._validateImage(previewId, fileId, caption, ftype, fsize, iData, exifObj);
    return;
}
selector = $h.getZoomSelector(previewId, ' img');
value = exifObj ? exifObj['0th'][piexif.ImageIFD.Orientation] : null; // jshint ignore:line
                                                                         if (!value) {
    self._validateImage(previewId, fileId, caption, ftype, fsize, iData, exifObj);
    return;
}
self.setImageOrientation($img, $(selector), value, self._getFrame(previewId));
self._raise('fileimageoriented', {'$img': $img, 'file': file});
self._validateImage(previewId, fileId, caption, ftype, fsize, iData, exifObj);
},
_validateImage: function (previewId, fileId, fname, ftype, fsize, iData, exifObj) {
    var self = this, $preview = self.$preview, params, w1, w2, $thumb = self._getFrame(previewId),
    i = $thumb.attr('data-fileindex'), $img = $thumb.find('img');
    fname = fname || 'Untitled';
$img.one('load', function () {
    w1 = $thumb.width();
    w2 = $preview.width();
if (w1 > w2) {
    $img.css('width', '100%');
}
params = {ind: i, id: previewId, fileId: fileId};
self._checkDimensions(i, 'Small', $img, $thumb, fname, 'Width', params);
self._checkDimensions(i, 'Small', $img, $thumb, fname, 'Height', params);
if (!self.resizeImage) {
    self._checkDimensions(i, 'Large', $img, $thumb, fname, 'Width', params);
    self._checkDimensions(i, 'Large', $img, $thumb, fname, 'Height', params);
}
self._raise('fileimageloaded', [previewId]);
self.fileManager.addImage(fileId, {
                              ind: i,
                              img: $img,
                              thumb: $thumb,
                              pid: previewId,
                              typ: ftype,
                              siz: fsize,
                              validated: false,
                              imgData: iData,
                              exifObj: exifObj
                          });
$thumb.data('exif', exifObj);
self._validateAllImages();
}).one('error', function () {
    self._raise('fileimageloaderror', [previewId]);
});
},
_validateAllImages: function () {
var self = this, counter = {val: 0}, numImgs = self.fileManager.getImageCount(), fsize,
                                                                                 minSize = self.resizeIfSizeMoreThan;
if (numImgs !== self.fileManager.totalImages) {
    return;
}
self._raise('fileimagesloaded');
if (!self.resizeImage) {
    return;
}
$.each(self.fileManager.loadedImages, function (id, config) {
if (!config.validated) {
    fsize = config.siz;
if (fsize && fsize > minSize * self.bytesToKB) {
    self._getResizedImage(id, config, counter, numImgs);
}
config.validated = true;
}
});
},
_getResizedImage: function (id, config, counter, numImgs) {
    var self = this, img = $(config.img)[0], width = img.naturalWidth, height = img.naturalHeight, blob,
ratio = 1, maxWidth = self.maxImageWidth || width, maxHeight = self.maxImageHeight || height,
isValidImage = !!(width && height), chkWidth, chkHeight, canvas = self.imageCanvas, dataURI,
context = self.imageCanvasContext, type = config.typ, pid = config.pid, ind = config.ind,
$thumb = config.thumb, throwError, msg, exifObj = config.exifObj, exifStr, file, params, evParams;
throwError = function (msg, params, ev) {
if (self.isAjaxUpload) {
    self._showFileError(msg, params, ev);
} else {
      self._showError(msg, params, ev);
  }
self._setPreviewError($thumb);
};
file = self.fileManager.getFile(id);
params = {id: pid, 'index': ind, fileId: id};
evParams = [id, pid, ind];
if (!file || !isValidImage || (width <= maxWidth && height <= maxHeight)) {
if (isValidImage && file) {
    self._raise('fileimageresized', evParams);
}
counter.val++;
if (counter.val === numImgs) {
    self._raise('fileimagesresized');
}
if (!isValidImage) {
throwError(self.msgImageResizeError, params, 'fileimageresizeerror');
    return;
}
}
type = type || self.resizeDefaultImageType;
chkWidth = width > maxWidth;
chkHeight = height > maxHeight;
if (self.resizePreference === 'width') {
    ratio = chkWidth ? maxWidth / width : (chkHeight ? maxHeight / height : 1);
} else {
      ratio = chkHeight ? maxHeight / height : (chkWidth ? maxWidth / width : 1);
  }
self._resetCanvas();
width *= ratio;
height *= ratio;
canvas.width = width;
canvas.height = height;
try {
    context.drawImage(img, 0, 0, width, height);
    dataURI = canvas.toDataURL(type, self.resizeQuality);
if (exifObj) {
    exifStr = window.piexif.dump(exifObj);
    dataURI = window.piexif.insert(exifStr, dataURI);
}
blob = $h.dataURI2Blob(dataURI);
self.fileManager.setFile(id, blob);
self._raise('fileimageresized', evParams);
counter.val++;
if (counter.val === numImgs) {
    self._raise('fileimagesresized', [undefined, undefined]);
}
if (!(blob instanceof Blob)) {
throwError(self.msgImageResizeError, params, 'fileimageresizeerror');
}
} catch (err) {
    counter.val++;
if (counter.val === numImgs) {
    self._raise('fileimagesresized', [undefined, undefined]);
}
msg = self.msgImageResizeException.replace('{errors}', err.message);
throwError(msg, params, 'fileimageresizeexception');
}
},
_showProgress: function () {
    var self = this;
if (self.$progress && self.$progress.length) {
    self.$progress.show();
}
},
_hideProgress: function () {
    var self = this;
if (self.$progress && self.$progress.length) {
    self.$progress.hide();
}
},
_initBrowse: function ($container) {
    var self = this, $el = self.$element;
if (self.showBrowse) {
    self.$btnFile = $container.find('.btn-file').append($el);
} else {
      $el.appendTo($container).attr('tabindex', -1);
      $h.addCss($el, 'file-no-browse');
  }
},
_initClickable: function () {
    var self = this, $zone, $tmpZone;
if (!self.isClickable) {
    return;
}
$zone = self.$dropZone;
if (!self.isAjaxUpload) {
    $tmpZone = self.$preview.find('.file-default-preview');
if ($tmpZone.length) {
    $zone = $tmpZone;
}
}

$h.addCss($zone, 'clickable');
$zone.attr('tabindex', -1);
self._handler($zone, 'click', function (e) {
    var $tar = $(e.target);
if (!self.$errorContainer.is(':visible') && (!$tar.parents(
'.file-preview-thumbnails').length || $tar.parents(
'.file-default-preview').length)) {
    self.$element.data('zoneClicked', true).trigger('click');
    $zone.blur();
}
});
},
_initCaption: function () {
    var self = this, cap = self.initialCaption || '';
if (self.overwriteInitial || $h.isEmpty(cap)) {
    self.$caption.val('');
    return false;
}
self._setCaption(cap);
return true;
},
_setCaption: function (content, isError) {
    var self = this, title, out, icon, n, cap, file;
if (!self.$caption.length) {
    return;
}
self.$captionContainer.removeClass('icon-visible');
if (isError) {
    title = $('<div>' + self.msgValidationError + '</div>').text();
    n = self.fileManager.count();
if (n) {
    file = self.fileManager.getFirstFile();
    cap = n === 1 && file ? file.nameFmt : self._getMsgSelected(n);
} else {
      cap = self._getMsgSelected(self.msgNo);
  }
out = $h.isEmpty(content) ? cap : content;
icon = '<span class="' + self.msgValidationErrorClass + '">' + self.msgValidationErrorIcon + '</span>';
} else {
if ($h.isEmpty(content)) {
    self.$caption.attr('title', '');
    return;
}
title = $('<div>' + content + '</div>').text();
out = title;
icon = self._getLayoutTemplate('fileIcon');
}
self.$captionContainer.addClass('icon-visible');
self.$caption.attr('title', title).val(out);
$h.setHtml(self.$captionIcon, icon);
},
_createContainer: function () {
var self = this, attribs = {'class': 'file-input file-input-new' + (self.rtl ? ' kv-rtl' : '')},
$container = $h.createElement($h.cspBuffer.stash(self._renderMain()));
$h.cspBuffer.apply($container);
$container.insertBefore(self.$element).attr(attribs);
self._initBrowse($container);
if (self.theme) {
    $container.addClass('theme-' + self.theme);
}
return $container;
},
_refreshContainer: function () {
    var self = this, $container = self.$container, $el = self.$element;
    $el.insertAfter($container);
    $h.setHtml($container, self._renderMain());
    self._initBrowse($container);
    self._validateDisabled();
},
_validateDisabled: function () {
    var self = this;
self.$caption.attr({readonly: self.isDisabled});
},
_setTabIndex: function (type, html) {
    var self = this, index = self.tabIndexConfig[type];
return html.setTokens({
    tabIndexConfig: index === undefined || index === null ? '' : 'tabindex="' + index + '"'
});
},
_renderMain: function () {
var self = this,
           dropCss = self.dropZoneEnabled ? ' file-drop-zone' : 'file-drop-disabled',
close = !self.showClose ? '' : self._getLayoutTemplate('close'),
preview = !self.showPreview ? '' : self._getLayoutTemplate('preview')
.setTokens({'class': self.previewClass, 'dropClass': dropCss}),
css = self.isDisabled ? self.captionClass + ' file-caption-disabled' : self.captionClass,
                                                                     caption = self.captionTemplate.setTokens({'class': css + ' kv-fileinput-caption'});
caption = self._setTabIndex('caption', caption);
return self.mainTemplate.setTokens({
'class': self.mainClass + (!self.showBrowse && self.showCaption ? ' no-browse' : ''),
'inputGroupClass': self.inputGroupClass,
'preview': preview,
'close': close,
'caption': caption,
'upload': self._renderButton('upload'),
'remove': self._renderButton('remove'),
'cancel': self._renderButton('cancel'),
'pause': self._renderButton('pause'),
'browse': self._renderButton('browse')
});

},
_renderButton: function (type) {
    var self = this, tmplt = self._getLayoutTemplate('btnDefault'), css = self[type + 'Class'],
    title = self[type + 'Title'], icon = self[type + 'Icon'], label = self[type + 'Label'],
    status = self.isDisabled ? ' disabled' : '', btnType = 'button';
switch (type) {
case 'remove':
             if (!self.showRemove) {
    return '';
}
break;
case 'cancel':
             if (!self.showCancel) {
    return '';
}
css += ' kv-hidden';
break;
case 'pause':
            if (!self.showPause) {
    return '';
}
css += ' kv-hidden';
break;
case 'upload':
             if (!self.showUpload) {
    return '';
}
if (self.isAjaxUpload && !self.isDisabled) {
    tmplt = self._getLayoutTemplate('btnLink').replace('{href}', self.uploadUrl);
} else {
      btnType = 'submit';
  }
break;
case 'browse':
             if (!self.showBrowse) {
    return '';
}
tmplt = self._getLayoutTemplate('btnBrowse');
break;
default:
return '';
}
tmplt = self._setTabIndex(type, tmplt);

css += type === 'browse' ? ' btn-file' : ' fileinput-' + type + ' fileinput-' + type + '-button';
if (!$h.isEmpty(label)) {
    label = ' <span class="' + self.buttonLabelClass + '">' + label + '</span>';
}
return tmplt.setTokens({
'type': btnType, 'css': css, 'title': title, 'status': status, 'icon': icon, 'label': label
});
},
_renderThumbProgress: function () {
    var self = this;
return '<div class="file-thumb-progress kv-hidden">' +
                                                     self.progressInfoTemplate.setTokens({percent: 101, status: self.msgUploadBegin, stats: ''}) +
'</div>';
},
_renderFileFooter: function (cat, caption, size, width, isError) {
var self = this, config = self.fileActionSettings, rem = config.showRemove, drg = config.showDrag,
                                                                                  upl = config.showUpload, zoom = config.showZoom, out, params,
                                                                                                                  template = self._getLayoutTemplate('footer'), tInd = self._getLayoutTemplate('indicator'),
ind = isError ? config.indicatorError : config.indicatorNew,
      title = isError ? config.indicatorErrorTitle : config.indicatorNewTitle,
              indicator = tInd.setTokens({'indicator': ind, 'indicatorTitle': title});
size = self._getSize(size);
params = {type: cat, caption: caption, size: size, width: width, progress: '', indicator: indicator};
if (self.isAjaxUpload) {
    params.progress = self._renderThumbProgress();
    params.actions = self._renderFileActions(params, upl, false, rem, zoom, drg, false, false, false);
} else {
      params.actions = self._renderFileActions(params, false, false, false, zoom, drg, false, false, false);
  }
out = template.setTokens(params);
out = $h.replaceTags(out, self.previewThumbTags);
return out;
},
_renderFileActions: function (
cfg,
showUpl,
showDwn,
showDel,
showZoom,
showDrag,
disabled,
url,
key,
isInit,
dUrl,
dFile
) {
    var self = this;
if (!cfg.type && isInit) {
    cfg.type = 'image';
}
if (self.enableResumableUpload) {
    showUpl = false;
} else {
if (typeof showUpl === 'function') {
    showUpl = showUpl(cfg);
}
}
if (typeof showDwn === 'function') {
    showDwn = showDwn(cfg);
}
if (typeof showDel === 'function') {
    showDel = showDel(cfg);
}
if (typeof showZoom === 'function') {
    showZoom = showZoom(cfg);
}
if (typeof showDrag === 'function') {
    showDrag = showDrag(cfg);
}
if (!showUpl && !showDwn && !showDel && !showZoom && !showDrag) {
    return '';
}
var vUrl = url === false ? '' : ' data-url="' + url + '"', btnZoom = '', btnDrag = '', css,
                                                                                       vKey = key === false ? '' : ' data-key="' + key + '"', btnDelete = '', btnUpload = '', btnDownload = '',
template = self._getLayoutTemplate('actions'), config = self.fileActionSettings,
                                                        otherButtons = self.otherActionButtons.setTokens({'dataKey': vKey, 'key': key}),
removeClass = disabled ? config.removeClass + ' disabled' : config.removeClass;
if (showDel) {
btnDelete = self._getLayoutTemplate('actionDelete').setTokens({
'removeClass': removeClass,
'removeIcon': config.removeIcon,
'removeTitle': config.removeTitle,
'dataUrl': vUrl,
'dataKey': vKey,
'key': key
});
}
if (showUpl) {
btnUpload = self._getLayoutTemplate('actionUpload').setTokens({
'uploadClass': config.uploadClass,
'uploadIcon': config.uploadIcon,
'uploadTitle': config.uploadTitle
});
}
if (showDwn) {
btnDownload = self._getLayoutTemplate('actionDownload').setTokens({
'downloadClass': config.downloadClass,
'downloadIcon': config.downloadIcon,
'downloadTitle': config.downloadTitle,
'downloadUrl': dUrl || self.initialPreviewDownloadUrl
});
btnDownload = btnDownload.setTokens({'filename': dFile, 'key': key});
}
if (showZoom) {
btnZoom = self._getLayoutTemplate('actionZoom').setTokens({
'zoomClass': config.zoomClass,
'zoomIcon': config.zoomIcon,
'zoomTitle': config.zoomTitle
});
}
if (showDrag && isInit) {
    css = 'drag-handle-init ' + config.dragClass;
btnDrag = self._getLayoutTemplate('actionDrag').setTokens({
'dragClass': css,
'dragTitle': config.dragTitle,
'dragIcon': config.dragIcon
});
}
return template.setTokens({
'delete': btnDelete,
'upload': btnUpload,
'download': btnDownload,
'zoom': btnZoom,
'drag': btnDrag,
'other': otherButtons
});
},
_browse: function (e) {
    var self = this;
if (e && e.isDefaultPrevented() || !self._raise('filebrowse')) {
    return;
}
if (self.isError && !self.isAjaxUpload) {
    self.clear();
}
if (self.focusCaptionOnBrowse) {
    self.$captionContainer.focus();
}
},
_change: function (e) {
    var self = this;
    $(document.body).off('focusin.fileinput focusout.fileinput');
if (self.changeTriggered) {
    return;
}
self._setLoading('show');
var $el = self.$element, isDragDrop = arguments.length > 1, isAjaxUpload = self.isAjaxUpload,
                                                                           tfiles, files = isDragDrop ? arguments[1] : $el[0].files, ctr = self.fileManager.count(),
total, initCount, len, isSingleUpl = $h.isEmpty($el.attr('multiple')),
maxCount = !isAjaxUpload && isSingleUpl ? 1 : self.maxFileCount, maxTotCount = self.maxTotalFileCount,
                                                                               inclAll = maxTotCount > 0 && maxTotCount > maxCount, flagSingle = (isSingleUpl && ctr > 0),
throwError = function (mesg, file, previewId, index) {
var p1 = $.extend(true, {}, self._getOutData(null, {}, {}, files), {id: previewId, index: index}),
p2 = {id: previewId, index: index, file: file, files: files};
self.isPersistentError = true;
self._setLoading('hide');
return isAjaxUpload ? self._showFileError(mesg, p1) : self._showError(mesg, p2);
},
maxCountCheck = function (n, m, all) {
    var msg = all ? self.msgTotalFilesTooMany : self.msgFilesTooMany;
    msg = msg.replace('{m}', m).replace('{n}', n);
    self.isError = throwError(msg, null, null, null);
    self.$captionContainer.removeClass('icon-visible');
    self._setCaption('', true);
    self.$container.removeClass('file-input-new file-input-ajax-new');
};
self.reader = null;
self._resetUpload();
self._hideFileIcon();
if (self.dropZoneEnabled) {
    self.$container.find('.file-drop-zone .' + self.dropZoneTitleClass).remove();
}
if (!isAjaxUpload) {
if (e.target && e.target.files === undefined) {
files = e.target.value ? [{name: e.target.value.replace(/^.+\\/, '')}] : [];
} else {
files = e.target.files || {};
}
}
tfiles = files;
if ($h.isEmpty(tfiles) || tfiles.length === 0) {
if (!isAjaxUpload) {
    self.clear();
}
self._raise('fileselectnone');
return;
}
self._resetErrors();
len = tfiles.length;
initCount = isAjaxUpload ? (self.fileManager.count() + len) : len;
total = self._getFileCount(initCount, inclAll ? false : undefined);
if (maxCount > 0 && total > maxCount) {
if (!self.autoReplace || len > maxCount) {
maxCountCheck((self.autoReplace && len > maxCount ? len : total), maxCount);
    return;
}
if (total > maxCount) {
    self._resetPreviewThumbs(isAjaxUpload);
}
} else {
if (inclAll) {
    total = self._getFileCount(initCount, true);
if (maxTotCount > 0 && total > maxTotCount) {
if (!self.autoReplace || len > maxCount) {
maxCountCheck((self.autoReplace && len > maxTotCount ? len : total), maxTotCount, true);
    return;
}
if (total > maxCount) {
    self._resetPreviewThumbs(isAjaxUpload);
}
}
}
if (!isAjaxUpload || flagSingle) {
    self._resetPreviewThumbs(false);
if (flagSingle) {
    self.clearFileStack();
}
} else {
if (isAjaxUpload && ctr === 0 && (!self.previewCache.count(true) || self.overwriteInitial)) {
    self._resetPreviewThumbs(true);
}
}
}
self.readFiles(tfiles);
self._setLoading('hide');
},
_abort: function (params) {
    var self = this, data;
if (self.ajaxAborted && typeof self.ajaxAborted === 'object' && self.ajaxAborted.message !== undefined) {
data = $.extend(true, {}, self._getOutData(null), params);
data.abortData = self.ajaxAborted.data || {};
data.abortMessage = self.ajaxAborted.message;
self._setProgress(101, self.$progress, self.msgCancelled);
self._showFileError(self.ajaxAborted.message, data, 'filecustomerror');
self.cancel();
self.unlock();
return true;
}
return !!self.ajaxAborted;
},
_resetFileStack: function () {
    var self = this, i = 0;
self._getThumbs().each(function () {
    var $thumb = $(this), ind = $thumb.attr('data-fileindex'), pid = $thumb.attr('id');
if (ind === '-1' || ind === -1) {
    return;
}
if (!self._getThumbFile($thumb)) {
$thumb.attr({'data-fileindex': i});
i++;
} else {
$thumb.attr({'data-fileindex': '-1'});
}
self._getZoom(pid).attr({
'data-fileindex': $thumb.attr('data-fileindex')
});
});
},
_isFileSelectionValid: function (cnt) {
    var self = this;
    cnt = cnt || 0;
if (self.required && !self.getFilesCount()) {
    self.$errorContainer.html('');
    self._showFileError(self.msgFileRequired);
    return false;
}
if (self.minFileCount > 0 && self._getFileCount(cnt) < self.minFileCount) {
self._noFilesError({});
return false;
}
return true;
},
_canPreview: function (file) {
    var self = this;
if (!file || !self.showPreview || !self.$preview || !self.$preview.length) {
    return false;
}
var name = file.name || '', type = file.type || '', size = (file.size || 0) / self.bytesToKB,
                                                                              cat = self._parseFileType(type, name), allowedTypes, allowedMimes, allowedExts, skipPreview,
                                                                                                                     types = self.allowedPreviewTypes, mimes = self.allowedPreviewMimeTypes,
                                                                                                                                                               exts = self.allowedPreviewExtensions || [], dTypes = self.disabledPreviewTypes,
                                                                                                                                                                                                                    dMimes = self.disabledPreviewMimeTypes, dExts = self.disabledPreviewExtensions || [],
                                                                                                                                                                                                                                                                    maxSize = self.maxFilePreviewSize && parseFloat(self.maxFilePreviewSize) || 0,
expAllExt = new RegExp('\\.(' + exts.join('|') + ')$', 'i'),
expDisExt = new RegExp('\\.(' + dExts.join('|') + ')$', 'i');
allowedTypes = !types || types.indexOf(cat) !== -1;
allowedMimes = !mimes || mimes.indexOf(type) !== -1;
allowedExts = !exts.length || $h.compare(name, expAllExt);
skipPreview = (dTypes && dTypes.indexOf(cat) !== -1) || (dMimes && dMimes.indexOf(type) !== -1) ||
(dExts.length && $h.compare(name, expDisExt)) || (maxSize && !isNaN(maxSize) && size > maxSize);
return !skipPreview && (allowedTypes || allowedMimes || allowedExts);
},
addToStack: function (file, id) {
    this.fileManager.add(file, id);
},
clearFileStack: function () {
    var self = this;
    self.fileManager.clear();
    self._initResumableUpload();
if (self.enableResumableUpload) {
if (self.showPause === null) {
    self.showPause = true;
}
if (self.showCancel === null) {
    self.showCancel = false;
}
} else {
      self.showPause = false;
if (self.showCancel === null) {
    self.showCancel = true;
}
}
return self.$element;
},
getFileStack: function () {
    return this.fileManager.stack;
},
getFileList: function () {
    return this.fileManager.list();
},
getFilesSize: function () {
    return this.fileManager.getTotalSize();
},
getFilesCount: function (includeInitial) {
    var self = this, len = self.isAjaxUpload ? self.fileManager.count() : self._inputFileCount();
if (includeInitial) {
    len += self.previewCache.count(true);
}
return self._getFileCount(len);
},
_initCapStatus: function (status) {
    var self = this, $cap = self.$caption;
    $cap.removeClass('is-valid file-processing');
if (!status) {
    return;
}
if (status === 'processing') {
    $cap.addClass('file-processing');
} else {
      $cap.addClass('is-valid');
  }
},
_setLoading: function (type) {
    var self = this;
    self.$previewStatus.html(type === 'hide' ? '' : self.msgProcessing);
    self.$container.removeClass('file-thumb-loading');
    self._initCapStatus(type === 'hide' ? '' : 'processing');
if (type !== 'hide') {
if (self.dropZoneEnabled) {
    self.$container.find('.file-drop-zone .' + self.dropZoneTitleClass).remove();
}
self.$container.addClass('file-thumb-loading');
}
},
_initFileSelected: function () {
    var self = this, $el = self.$element, $body = $(document.body), ev = 'focusin.fileinput focusout.fileinput';
if ($body.length) {
$body.off(ev).on('focusout.fileinput', function () {
    self._setLoading('show');
}).on('focusin.fileinput', function () {
setTimeout(function () {
if (!$el.val()) {
    self._setLoading('hide');
    self._setFileDropZoneTitle();
}
$body.off(ev);
}, 2500);
});
} else {
      self._setLoading('hide');
  }
},
readFiles: function (files) {
    this.reader = new FileReader();
var self = this, reader = self.reader, $container = self.$previewContainer,
$status = self.$previewStatus, msgLoading = self.msgLoading, msgProgress = self.msgProgress,
                                                                           previewInitId = self.previewInitId, numFiles = files.length, settings = self.fileTypeSettings,
                                                                                                                                                   readFile, fileTypes = self.allowedFileTypes, typLen = fileTypes ? fileTypes.length : 0,
fileExt = self.allowedFileExtensions, strExt = $h.isEmpty(fileExt) ? '' : fileExt.join(', '),
throwError = function (msg, file, previewId, index, fileId) {
var $thumb, p1 = $.extend(true, {}, self._getOutData(null, {}, {}, files),
{id: previewId, index: index, fileId: fileId}),
p2 = {id: previewId, index: index, fileId: fileId, file: file, files: files};
self._previewDefault(file, true);
$thumb = self._getFrame(previewId, true);
self._setLoading('hide');
if (self.isAjaxUpload) {
setTimeout(function () {
readFile(index + 1);
}, self.processDelay);
} else {
      self.unlock();
      numFiles = 0;
  }
if (self.removeFromPreviewOnError && $thumb.length) {
    $thumb.remove();
} else {
      self._initFileActions();
      $thumb.find('.kv-file-upload').remove();
  }
self.isPersistentError = true;
self.isError = self.isAjaxUpload ? self._showFileError(msg, p1) : self._showError(msg, p2);
self._updateFileDetails(numFiles);
};
self.fileManager.clearImages();
$.each(files, function (key, file) {
    var func = self.fileTypeSettings.image;
if (func && func(file.type)) {
    self.fileManager.totalImages++;
}
});
readFile = function (i) {
    var $error = self.$errorContainer, errors, fm = self.fileManager;
if (i >= numFiles) {
    self.unlock();
if (self.duplicateErrors.length) {
    errors = '<li>' + self.duplicateErrors.join('</li><li>') + '</li>';
if ($error.find('ul').length === 0) {
    $h.setHtml($error, self.errorCloseButton + '<ul>' + errors + '</ul>');
} else {
      $error.find('ul').append(errors);
  }
$error.fadeIn(self.fadeDelay);
self._handler($error.find('.kv-error-close'), 'click', function () {
    $error.fadeOut(self.fadeDelay);
});
self.duplicateErrors = [];
}
if (self.isAjaxUpload) {
    self._raise('filebatchselected', [fm.stack]);
if (fm.count() === 0 && !self.isError) {
    self.reset();
}
} else {
      self._raise('filebatchselected', [files]);
  }
$container.removeClass('file-thumb-loading');
self._initCapStatus('valid');
$status.html('');
return;
}
self.lock(true);
var file = files[i], id = self._getFileId(file), previewId = previewInitId + '-' + id, fSizeKB, j, msg,
                                                                                 fnImage = settings.image, typ, chk, typ1, typ2,
                                                                                           caption = self._getFileName(file, ''), fileSize = (file && file.size || 0) / self.bytesToKB,
                                                                                                                                                                        fileExtExpr = '', previewData = $h.createObjectURL(file), fileCount = 0,
strTypes = '', fileId, canLoad, fileReaderAborted = false,
                                                    func, knownTypes = 0, isImage, txtFlag, processFileLoaded = function () {
var isImageResized = !!fm.loadedImages[id], msg = msgProgress.setTokens({
'index': i + 1,
'files': numFiles,
'percent': 50,
'name': caption
});
setTimeout(function () {
    $status.html(msg);
    self._updateFileDetails(numFiles);
readFile(i + 1);
}, self.processDelay);
if (self._raise('fileloaded', [file, previewId, id, i, reader]) && self.isAjaxUpload) {
if (!isImageResized) {
    fm.add(file);
}
} else {
if (isImageResized) {
    fm.removeFile(id);
}
}
};
if (!file) {
    return;
}
fileId = fm.getId(file);
if (typLen > 0) {
    for (j = 0; j < typLen; j++) {
    typ1 = fileTypes[j];
    typ2 = self.msgFileTypes[typ1] || typ1;
    strTypes += j === 0 ? typ2 : ', ' + typ2;
}
}
if (caption === false) {
readFile(i + 1);
    return;
}
if (caption.length === 0) {
    msg = self.msgInvalidFileName.replace('{name}', $h.htmlEncode($h.getFileName(file), '[unknown]'));
throwError(msg, file, previewId, i, fileId);
    return;
}
if (!$h.isEmpty(fileExt)) {
    fileExtExpr = new RegExp('\\.(' + fileExt.join('|') + ')$', 'i');
}
fSizeKB = fileSize.toFixed(2);
if (self.isAjaxUpload && fm.exists(fileId) || self._getFrame(previewId, true).length) {
var p2 = {id: previewId, index: i, fileId: fileId, file: file, files: files};
msg = self.msgDuplicateFile.setTokens({name: caption, size: fSizeKB});
if (self.isAjaxUpload) {
    self.duplicateErrors.push(msg);
    self.isDuplicateError = true;
    self._raise('fileduplicateerror', [file, fileId, caption, fSizeKB, previewId, i]);
readFile(i + 1);
    self._updateFileDetails(numFiles);
} else {
      self._showError(msg, p2);
      self.unlock();
      numFiles = 0;
      self._clearFileInput();
      self.reset();
      self._updateFileDetails(numFiles);
  }
return;
}
if (self.maxFileSize > 0 && fileSize > self.maxFileSize) {
msg = self.msgSizeTooLarge.setTokens({
'name': caption,
'size': fSizeKB,
'maxSize': self.maxFileSize
});
throwError(msg, file, previewId, i, fileId);
return;
}
if (self.minFileSize !== null && fileSize <= $h.getNum(self.minFileSize)) {
msg = self.msgSizeTooSmall.setTokens({
'name': caption,
'size': fSizeKB,
'minSize': self.minFileSize
});
throwError(msg, file, previewId, i, fileId);
return;
}
if (!$h.isEmpty(fileTypes) && $h.isArray(fileTypes)) {
    for (j = 0; j < fileTypes.length; j += 1) {
    typ = fileTypes[j];
    func = settings[typ];
    fileCount += !func || (typeof func !== 'function') ? 0 : (func(file.type,
$h.getFileName(file)) ? 1 : 0);
}
if (fileCount === 0) {
msg = self.msgInvalidFileType.setTokens({name: caption, types: strTypes});
throwError(msg, file, previewId, i, fileId);
return;
}
}
if (fileCount === 0 && !$h.isEmpty(fileExt) && $h.isArray(fileExt) && !$h.isEmpty(fileExtExpr)) {
    chk = $h.compare(caption, fileExtExpr);
    fileCount += $h.isEmpty(chk) ? 0 : chk.length;
if (fileCount === 0) {
msg = self.msgInvalidFileExtension.setTokens({name: caption, extensions: strExt});
throwError(msg, file, previewId, i, fileId);
return;
}
}
if (!self._canPreview(file)) {
    canLoad = self.isAjaxUpload && self._raise('filebeforeload', [file, i, reader]);
if (self.isAjaxUpload && canLoad) {
    fm.add(file);
}
if (self.showPreview && canLoad) {
    $container.addClass('file-thumb-loading');
    self._initCapStatus('processing');
    self._previewDefault(file);
    self._initFileActions();
}
setTimeout(function () {
if (canLoad) {
    self._updateFileDetails(numFiles);
}
readFile(i + 1);
self._raise('fileloaded', [file, previewId, id, i]);
}, 10);
return;
}
isImage = fnImage(file.type, caption);
$status.html(msgLoading.replace('{index}', i + 1).replace('{files}', numFiles));
$container.addClass('file-thumb-loading');
self._initCapStatus('processing');
reader.onerror = function (evt) {
    self._errorHandler(evt, caption);
};
reader.onload = function (theFile) {
var hex, fileInfo, uint, byte, bytes = [], contents, mime, readImage = function () {
    var newReader = new FileReader();
newReader.onerror = function (theFileNew) {
    self._errorHandler(theFileNew, caption);
};
newReader.onload = function (theFileNew) {
if (self.isAjaxUpload && !self._raise('filebeforeload', [file, i, reader])) {
    fileReaderAborted = true;
    self._resetCaption();
    reader.abort();
    $status.html('');
    $container.removeClass('file-thumb-loading');
    self._initCapStatus('valid');
    self.enable();
    return;
}
self._previewFile(i, file, theFileNew, previewData, fileInfo);
self._initFileActions();
processFileLoaded();
};
newReader.readAsDataURL(file);
};
fileInfo = {'name': caption, 'type': file.type};
$.each(settings, function (k, f) {
if (k !== 'object' && k !== 'other' && typeof f === 'function' && f(file.type, caption)) {
    knownTypes++;
}
});
if (knownTypes === 0) { // auto detect mime types from content if no known file types detected
uint = new Uint8Array(theFile.target.result);
    for (j = 0; j < uint.length; j++) {
    byte = uint[j].toString(16);
    bytes.push(byte);
}
hex = bytes.join('').toLowerCase().substring(0, 8);
mime = $h.getMimeType(hex, '', '');
if ($h.isEmpty(mime)) { // look for ascii text content
contents = $h.arrayBuffer2String(reader.result);
    mime = $h.isSvg(contents) ? 'image/svg+xml' : $h.getMimeType(hex, contents, file.type);
}
fileInfo = {'name': caption, 'type': mime};
isImage = fnImage(mime, '');
if (isImage) {
readImage(txtFlag);
    return;
}
}
if (self.isAjaxUpload && !self._raise('filebeforeload', [file, i, reader])) {
    fileReaderAborted = true;
    self._resetCaption();
    reader.abort();
    $status.html('');
    $container.removeClass('file-thumb-loading');
    self._initCapStatus('valid');
    self.enable();
    return;
}
self._previewFile(i, file, theFile, previewData, fileInfo);
self._initFileActions();
processFileLoaded();
};
reader.onprogress = function (data) {
if (data.lengthComputable) {
    var fact = (data.loaded / data.total) * 100, progress = Math.ceil(fact);
msg = msgProgress.setTokens({
'index': i + 1,
'files': numFiles,
'percent': progress,
'name': caption
});
setTimeout(function () {
if (!fileReaderAborted) {
    $status.html(msg);
}
}, self.processDelay);
}
};
if (isImage) {
    reader.readAsDataURL(file);
} else {
      reader.readAsArrayBuffer(file);
  }
};

readFile(0);
self._updateFileDetails(numFiles);
},
lock: function (selectMode) {
    var self = this, $container = self.$container;
    self._resetErrors();
    self.disable();
if (!selectMode && self.showCancel) {
    $container.find('.fileinput-cancel').show();
}
if (!selectMode && self.showPause) {
    $container.find('.fileinput-pause').show();
}
self._initCapStatus('processing');
self._raise('filelock', [self.fileManager.stack, self._getExtraData()]);
return self.$element;
},
unlock: function (reset) {
    var self = this, $container = self.$container;
if (reset === undefined) {
    reset = true;
}
self.enable();
$container.removeClass('is-locked');
if (self.showCancel) {
    $container.find('.fileinput-cancel').hide();
}
if (self.showPause) {
    $container.find('.fileinput-pause').hide();
}
if (reset) {
    self._resetFileStack();
}
self._initCapStatus();
self._raise('fileunlock', [self.fileManager.stack, self._getExtraData()]);
return self.$element;
},
resume: function () {
    var self = this, fm = self.fileManager, flag = false, rm = self.resumableManager;
    fm.bpsLog = [];
    fm.bps = 0;
if (!self.enableResumableUpload) {
    return self.$element;
}
if (self.paused) {
    self._toggleResumableProgress(self.progressPauseTemplate, self.msgUploadResume);
} else {
      flag = true;
  }
self.paused = false;
if (flag) {
    self._toggleResumableProgress(self.progressInfoTemplate, self.msgUploadBegin);
}
setTimeout(function () {
    rm.upload();
}, self.processDelay);
return self.$element;
},
paste: function (e) {
    var self = this, ev = e.originalEvent, files = ev.clipboardData && ev.clipboardData.files || null;
if (files) {
    self._dropFiles(e, files);
}
return self.$element;
},
pause: function () {
    var self = this, rm = self.resumableManager, xhr = self.ajaxRequests, len = xhr.length, i,
    pct = rm.getProgress(), actions = self.fileActionSettings, tm = self.taskManager,
    pool = tm.getPool(rm.id);
if (!self.enableResumableUpload) {
    return self.$element;
} else {
if (pool) {
    pool.cancel();
}
}
self._raise('fileuploadpaused', [self.fileManager, rm]);
if (len > 0) {
    for (i = 0; i < len; i += 1) {
    self.paused = true;
    xhr[i].abort();
}
}
if (self.showPreview) {
self._getThumbs().each(function () {
    var $thumb = $(this), t = self._getLayoutTemplate('stats'), stats,
$indicator = $thumb.find('.file-upload-indicator');
    $thumb.removeClass('file-uploading');
if ($indicator.attr('title') === actions.indicatorLoadingTitle) {
    self._setThumbStatus($thumb, 'Paused');
stats = t.setTokens({pendingTime: self.msgPaused, uploadSpeed: ''});
self.paused = true;
self._setProgress(pct, $thumb.find('.file-thumb-progress'), pct + '%', stats);
}
if (!self._getThumbFile($thumb)) {
    $thumb.find('.kv-file-remove').removeClass('disabled').removeAttr('disabled');
}
});
}
self._setProgress(101, self.$progress, self.msgPaused);
return self.$element;
},
cancel: function () {
    var self = this, xhr = self.ajaxRequests,
    rm = self.resumableManager, tm = self.taskManager,
    pool = rm ? tm.getPool(rm.id) : undefined, len = xhr.length, i;

if (self.enableResumableUpload && pool) {
pool.cancel().done(function () {
    self._setProgressCancelled();
});
rm.reset();
self._raise('fileuploadcancelled', [self.fileManager, rm]);
} else {
      self._raise('fileuploadcancelled', [self.fileManager]);
  }
self._initAjax();
if (len > 0) {
    for (i = 0; i < len; i += 1) {
    self.cancelling = true;
    xhr[i].abort();
}
}
self._getThumbs().each(function () {
    var $thumb = $(this), $prog = $thumb.find('.file-thumb-progress');
    $thumb.removeClass('file-uploading');
    self._setProgress(0, $prog);
    $prog.hide();
if (!self._getThumbFile($thumb)) {
    $thumb.find('.kv-file-upload').removeClass('disabled').removeAttr('disabled');
    $thumb.find('.kv-file-remove').removeClass('disabled').removeAttr('disabled');
}
self.unlock();
});
setTimeout(function () {
    self._setProgressCancelled();
}, self.processDelay);
return self.$element;
},
clear: function () {
    var self = this, cap;
if (!self._raise('fileclear')) {
    return;
}
self.$btnUpload.removeAttr('disabled');
self._getThumbs().find('video,audio,img').each(function () {
    $h.cleanMemory($(this));
});
self._clearFileInput();
self._resetUpload();
self.clearFileStack();
self.isDuplicateError = false;
self.isPersistentError = false;
self._resetErrors(true);
if (self._hasInitialPreview()) {
    self._showFileIcon();
    self._resetPreview();
    self._initPreviewActions();
    self.$container.removeClass('file-input-new');
} else {
self._getThumbs().each(function () {
    self._clearObjects($(this));
});
if (self.isAjaxUpload) {
self.previewCache.data = {};
}
self.$preview.html('');
cap = (!self.overwriteInitial && self.initialCaption.length > 0) ? self.initialCaption : '';
self.$caption.attr('title', '').val(cap);
$h.addCss(self.$container, 'file-input-new');
self._validateDefaultPreview();
}
if (self.$container.find($h.FRAMES).length === 0) {
if (!self._initCaption()) {
    self.$captionContainer.removeClass('icon-visible');
}
}
self._hideFileIcon();
if (self.focusCaptionOnClear) {
    self.$captionContainer.focus();
}
self._setFileDropZoneTitle();
self._raise('filecleared');
return self.$element;
},
reset: function () {
    var self = this;
if (!self._raise('filereset')) {
    return;
}
self.lastProgress = 0;
self._resetPreview();
self.$container.find('.fileinput-filename').text('');
$h.addCss(self.$container, 'file-input-new');
if (self.getFrames().length) {
    self.$container.removeClass('file-input-new');
}
self.clearFileStack();
self._setFileDropZoneTitle();
return self.$element;
},
disable: function () {
    var self = this, $container = self.$container;
    self.isDisabled = true;
    self._raise('filedisabled');
    self.$element.attr('disabled', 'disabled');
    $container.addClass('is-locked');
    $h.addCss($container.find('.btn-file'), 'disabled');
    $container.find('.kv-fileinput-caption').addClass('file-caption-disabled');
    $container.find('.fileinput-remove, .fileinput-upload, .file-preview-frame button')
    .attr('disabled', true);
    self._initDragDrop();
    return self.$element;
},
enable: function () {
    var self = this, $container = self.$container;
    self.isDisabled = false;
    self._raise('fileenabled');
    self.$element.removeAttr('disabled');
    $container.removeClass('is-locked');
    $container.find('.kv-fileinput-caption').removeClass('file-caption-disabled');
    $container.find('.fileinput-remove, .fileinput-upload, .file-preview-frame button')
    .removeAttr('disabled');
    $container.find('.btn-file').removeClass('disabled');
    self._initDragDrop();
    return self.$element;
},
upload: function () {
    var self = this, fm = self.fileManager, totLen = fm.count(), i, outData,
    hasExtraData = !$.isEmptyObject(self._getExtraData());
    fm.bpsLog = [];
    fm.bps = 0;
if (!self.isAjaxUpload || self.isDisabled || !self._isFileSelectionValid(totLen)) {
    return;
}
self.lastProgress = 0;
self._resetUpload();
if (totLen === 0 && !hasExtraData) {
    self._showFileError(self.msgUploadEmpty);
    return;
}
self.cancelling = false;
self._showProgress();
self.lock();
if (totLen === 0 && hasExtraData) {
    self._setProgress(2);
    self._uploadExtraOnly();
    return;
}
if (self.enableResumableUpload) {
    return self.resume();
}
if (self.uploadAsync || self.enableResumableUpload) {
    outData = self._getOutData(null);
if (!self._checkBatchPreupload(outData)) {
    return;
}
self.fileBatchCompleted = false;
self.uploadCache = [];
$.each(self.getFileStack(), function (id) {
    var previewId = self._getThumbId(id);
self.uploadCache.push({id: previewId, content: null, config: null, tags: null, append: true});
});
self.$preview.find('.file-preview-initial').removeClass($h.SORT_CSS);
self._initSortable();
}
self._setProgress(2);
self.hasInitData = false;
if (self.uploadAsync) {
    i = 0;
$.each(self.getFileStack(), function (id) {
    self._uploadSingle(i, id, true);
    i++;
});
return;
}
self._uploadBatch();
return self.$element;
},
destroy: function () {
    var self = this, $form = self.$form, $cont = self.$container, $el = self.$element, ns = self.namespace;
    $(document).off(ns);
    $(window).off(ns);
if ($form && $form.length) {
    $form.off(ns);
}
if (self.isAjaxUpload) {
    self._clearFileInput();
}
self._cleanup();
self._initPreviewCache();
$el.insertBefore($cont).off(ns).removeData();
$cont.off().remove();
return $el;
},
refresh: function (options) {
    var self = this, $el = self.$element;
if (typeof options !== 'object' || $h.isEmpty(options)) {
    options = self.options;
} else {
options = $.extend(true, {}, self.options, options);
}
self._init(options, true);
self._listen();
return $el;
},
zoom: function (frameId) {
    var self = this, $frame = self._getFrame(frameId);
    self._showModal($frame);
},
getExif: function (frameId) {
    var self = this, $frame = self._getFrame(frameId);
    return $frame && $frame.data('exif') || null;
},
getFrames: function (cssFilter) {
    var self = this, $frames;
    cssFilter = cssFilter || '';
    $frames = self.$preview.find($h.FRAMES + cssFilter);
if (self.reversePreviewOrder) {
    $frames = $($frames.get().reverse());
}
return $frames;
},
getPreview: function () {
    var self = this;
return {
    content: self.initialPreview,
    config: self.initialPreviewConfig,
    tags: self.initialPreviewThumbTags
};
}
};

$.fn.fileinput = function (option) {
if (!$h.hasFileAPISupport() && !$h.isIE(9)) {
    return;
}
var args = Array.apply(null, arguments), retvals = [];
args.shift();
this.each(function () {
var self = $(this), data = self.data('fileinput'), options = typeof option === 'object' && option,
                                                                                           theme = options.theme || self.data('theme'), l = {}, t = {},
lang = options.language || self.data('language') || $.fn.fileinput.defaults.language || 'en', opt;
if (!data) {
if (theme) {
t = $.fn.fileinputThemes[theme] || {};
}
if (lang !== 'en' && !$h.isEmpty($.fn.fileinputLocales[lang])) {
l = $.fn.fileinputLocales[lang] || {};
}
opt = $.extend(true, {}, $.fn.fileinput.defaults, t, $.fn.fileinputLocales.en, l, options, self.data());
data = new FileInput(this, opt);
self.data('fileinput', data);
}

if (typeof option === 'string') {
    retvals.push(data[option].apply(data, args));
}
});
switch (retvals.length) {
    case 0:
    return this;
    case 1:
    return retvals[0];
    default:
            return retvals;
}
};

var IFRAME_ATTRIBS = 'class="kv-preview-data file-preview-pdf" src="{renderer}?file={data}" {style}',
defBtnCss1 = 'btn btn-sm btn-kv ' + $h.defaultButtonCss(), defBtnCss2 = 'btn ' + $h.defaultButtonCss();

$.fn.fileinput.defaults = {
language: 'en',
bytesToKB: 1024,
showCaption: true,
showBrowse: true,
showPreview: true,
showRemove: true,
showUpload: true,
showUploadStats: true,
showCancel: null,
showPause: null,
showClose: true,
showUploadedThumbs: true,
showConsoleLogs: false,
browseOnZoneClick: false,
autoReplace: false,
showDescriptionClose: true,
autoOrientImage: function () { // applicable for JPEG images only and non ios safari
var ua = window.navigator.userAgent, webkit = !!ua.match(/WebKit/i),
iOS = !!ua.match(/iP(od|ad|hone)/i), iOSSafari = iOS && webkit && !ua.match(/CriOS/i);
    return !iOSSafari;
},
autoOrientImageInitial: true,
showExifErrorLog: false,
required: false,
rtl: false,
hideThumbnailContent: false,
encodeUrl: true,
focusCaptionOnBrowse: true,
focusCaptionOnClear: true,
generateFileId: null,
previewClass: '',
captionClass: '',
frameClass: 'krajee-default',
mainClass: '',
inputGroupClass: '',
mainTemplate: null,
fileSizeGetter: null,
initialCaption: '',
initialPreview: [],
initialPreviewDelimiter: '*$$*',
initialPreviewAsData: false,
initialPreviewFileType: 'image',
initialPreviewConfig: [],
initialPreviewThumbTags: [],
previewThumbTags: {},
initialPreviewShowDelete: true,
initialPreviewDownloadUrl: '',
removeFromPreviewOnError: false,
deleteUrl: '',
deleteExtraData: {},
overwriteInitial: true,
sanitizeZoomCache: function (content) {
    var $container = $h.createElement(content);
    $container.find('input,textarea,select,datalist,form,.file-thumbnail-footer').remove();
    return $container.html();
},
previewZoomButtonIcons: {
    prev: '<i class="bi-chevron-left"></i>',
    next: '<i class="bi-chevron-right"></i>',
    toggleheader: '<i class="bi-arrows-expand"></i>',
    fullscreen: '<i class="bi-arrows-fullscreen"></i>',
    borderless: '<i class="bi-arrows-angle-expand"></i>',
    close: '<i class="bi-x-lg"></i>'
},
previewZoomButtonClasses: {
    prev: 'btn btn-default btn-outline-secondary btn-navigate',
    next: 'btn btn-default btn-outline-secondary btn-navigate',
    toggleheader: defBtnCss1,
    fullscreen: defBtnCss1,
    borderless: defBtnCss1,
    close: defBtnCss1
},
previewTemplates: {},
previewContentTemplates: {},
preferIconicPreview: false,
preferIconicZoomPreview: false,
allowedFileTypes: null,
allowedFileExtensions: null,
allowedPreviewTypes: undefined,
allowedPreviewMimeTypes: null,
allowedPreviewExtensions: null,
disabledPreviewTypes: undefined,
disabledPreviewExtensions: ['msi', 'exe', 'com', 'zip', 'rar', 'app', 'vb', 'scr'],
disabledPreviewMimeTypes: null,
defaultPreviewContent: null,
customLayoutTags: {},
customPreviewTags: {},
previewFileIcon: '<i class="bi-file-earmark-fill"></i>',
previewFileIconClass: 'file-other-icon',
previewFileIconSettings: {},
previewFileExtSettings: {},
buttonLabelClass: 'hidden-xs',
browseIcon: '<i class="bi-folder2-open"></i> ',
browseClass: 'btn btn-primary',
removeIcon: '<i class="bi-trash"></i>',
removeClass: defBtnCss2,
cancelIcon: '<i class="bi-slash-circle"></i>',
cancelClass: defBtnCss2,
pauseIcon: '<i class="bi-pause-fill"></i>',
pauseClass: defBtnCss2,
uploadIcon: '<i class="bi-upload"></i>',
uploadClass: defBtnCss2,
uploadUrl: null,
uploadUrlThumb: null,
uploadAsync: true,
uploadParamNames: {
    chunkCount: 'chunkCount',
    chunkIndex: 'chunkIndex',
    chunkSize: 'chunkSize',
    chunkSizeStart: 'chunkSizeStart',
    chunksUploaded: 'chunksUploaded',
    fileBlob: 'fileBlob',
    fileId: 'fileId',
    fileName: 'fileName',
    fileRelativePath: 'fileRelativePath',
    fileSize: 'fileSize',
    retryCount: 'retryCount'
},
maxAjaxThreads: 5,
fadeDelay: 800,
processDelay: 100,
bitrateUpdateDelay: 500,
queueDelay: 10, // must be lesser than process delay
                   progressDelay: 0, // must be lesser than process delay
                                        enableResumableUpload: false,
                                        resumableUploadOptions: {
                                            fallback: null,
                                            testUrl: null, // used for checking status of chunks/ files previously / partially uploaded
                                            chunkSize: 2048, // in KB
                                            maxThreads: 4,
                                            maxRetries: 3,
                                            showErrorLog: true,
                                            retainErrorHistory: true, // display complete error history always unless user explicitly resets upload
                                            skipErrorsAndProceed: false // when set to true, files with errors will be skipped and upload will continue with other files
                                        },
uploadExtraData: {},
zoomModalHeight: 480,
minImageWidth: null,
minImageHeight: null,
maxImageWidth: null,
maxImageHeight: null,
resizeImage: false,
resizePreference: 'width',
resizeQuality: 0.92,
resizeDefaultImageType: 'image/jpeg',
resizeIfSizeMoreThan: 0, // in KB
                            minFileSize: -1,
maxFileSize: 0,
maxFilePreviewSize: 25600, // 25 MB
                                 minFileCount: 0,
maxFileCount: 0,
maxTotalFileCount: 0,
validateInitialCount: false,
msgValidationErrorClass: 'text-danger',
msgValidationErrorIcon: '<i class="bi-exclamation-circle-fill"></i> ',
msgErrorClass: 'file-error-message',
progressThumbClass: 'progress-bar progress-bar-striped active progress-bar-animated',
progressClass: 'progress-bar bg-success progress-bar-success progress-bar-striped active progress-bar-animated',
progressInfoClass: 'progress-bar bg-info progress-bar-info progress-bar-striped active progress-bar-animated',
progressCompleteClass: 'progress-bar bg-success progress-bar-success',
progressPauseClass: 'progress-bar bg-primary progress-bar-primary progress-bar-striped active progress-bar-animated',
progressErrorClass: 'progress-bar bg-danger progress-bar-danger',
progressUploadThreshold: 99,
previewFileType: 'image',
elCaptionContainer: null,
elCaptionText: null,
elPreviewContainer: null,
elPreviewImage: null,
elPreviewStatus: null,
elErrorContainer: null,
errorCloseButton: undefined,
slugCallback: null,
dropZoneEnabled: true,
dropZoneTitleClass: 'file-drop-zone-title',
fileActionSettings: {},
otherActionButtons: '',
textEncoding: 'UTF-8',
preProcessUpload: null,
ajaxSettings: {},
ajaxDeleteSettings: {},
showAjaxErrorDetails: true,
mergeAjaxCallbacks: false,
mergeAjaxDeleteCallbacks: false,
retryErrorUploads: true,
reversePreviewOrder: false,
usePdfRenderer: function () {
    var isIE11 = !!window.MSInputMethodContext && !!document.documentMode;
    return !!navigator.userAgent.match(/(iPod|iPhone|iPad|Android)/i) || isIE11;
},
pdfRendererUrl: '',
pdfRendererTemplate: '<iframe ' + IFRAME_ATTRIBS + '></iframe>',
tabIndexConfig: {
    browse: 500,
    remove: 500,
    upload: 500,
    cancel: null,
    pause: null,
    modal: -1
}
};

// noinspection HtmlUnknownAttribute
    $.fn.fileinputLocales.en = {
sizeUnits: ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'],
bitRateUnits: ['B/s', 'KB/s', 'MB/s', 'GB/s', 'TB/s', 'PB/s', 'EB/s', 'ZB/s', 'YB/s'],
fileSingle: 'file',
filePlural: 'files',
browseLabel: 'Browse &hellip;',
removeLabel: 'Remove',
removeTitle: 'Clear all unprocessed files',
cancelLabel: 'Cancel',
cancelTitle: 'Abort ongoing upload',
pauseLabel: 'Pause',
pauseTitle: 'Pause ongoing upload',
uploadLabel: 'Upload',
uploadTitle: 'Upload selected files',
msgNo: 'No',
msgNoFilesSelected: 'No files selected',
msgCancelled: 'Cancelled',
msgPaused: 'Paused',
msgPlaceholder: 'Select {files} ...',
msgZoomModalHeading: 'Detailed Preview',
msgFileRequired: 'You must select a file to upload.',
msgSizeTooSmall: 'File "{name}" (<b>{size} KB</b>) is too small and must be larger than <b>{minSize} KB</b>.',
msgSizeTooLarge: 'File "{name}" (<b>{size} KB</b>) exceeds maximum allowed upload size of <b>{maxSize} KB</b>.',
msgFilesTooLess: 'You must select at least <b>{n}</b> {files} to upload.',
msgFilesTooMany: 'Number of files selected for upload <b>({n})</b> exceeds maximum allowed limit of <b>{m}</b>.',
msgTotalFilesTooMany: 'You can upload a maximum of <b>{m}</b> files (<b>{n}</b> files detected).',
msgFileNotFound: 'File "{name}" not found!',
msgFileSecured: 'Security restrictions prevent reading the file "{name}".',
msgFileNotReadable: 'File "{name}" is not readable.',
msgFilePreviewAborted: 'File preview aborted for "{name}".',
msgFilePreviewError: 'An error occurred while reading the file "{name}".',
msgInvalidFileName: 'Invalid or unsupported characters in file name "{name}".',
msgInvalidFileType: 'Invalid type for file "{name}". Only "{types}" files are supported.',
msgInvalidFileExtension: 'Invalid extension for file "{name}". Only "{extensions}" files are supported.',
msgFileTypes: {
'image': 'image',
'html': 'HTML',
'text': 'text',
'video': 'video',
'audio': 'audio',
'flash': 'flash',
'pdf': 'PDF',
'object': 'object'
},
msgUploadAborted: 'The file upload was aborted',
msgUploadThreshold: 'Processing &hellip;',
msgUploadBegin: 'Initializing &hellip;',
msgUploadEnd: 'Done',
msgUploadResume: 'Resuming upload &hellip;',
msgUploadEmpty: 'No valid data available for upload.',
msgUploadError: 'Upload Error',
msgDeleteError: 'Delete Error',
msgProgressError: 'Error',
msgValidationError: 'Validation Error',
msgLoading: 'Loading file {index} of {files} &hellip;',
msgProgress: 'Loading file {index} of {files} - {name} - {percent}% completed.',
msgSelected: '{n} {files} selected',
msgProcessing: 'Processing ...',
msgFoldersNotAllowed: 'Drag & drop files only! {n} folder(s) dropped were skipped.',
msgImageWidthSmall: 'Width of image file "{name}" must be at least {size} px.',
msgImageHeightSmall: 'Height of image file "{name}" must be at least {size} px.',
msgImageWidthLarge: 'Width of image file "{name}" cannot exceed {size} px.',
msgImageHeightLarge: 'Height of image file "{name}" cannot exceed {size} px.',
msgImageResizeError: 'Could not get the image dimensions to resize.',
msgImageResizeException: 'Error while resizing the image.<pre>{errors}</pre>',
msgAjaxError: 'Something went wrong with the {operation} operation. Please try again later!',
msgAjaxProgressError: '{operation} failed',
msgDuplicateFile: 'File "{name}" of same size "{size} KB" has already been selected earlier. Skipping duplicate selection.',
msgResumableUploadRetriesExceeded: 'Upload aborted beyond <b>{max}</b> retries for file <b>{file}</b>! Error Details: <pre>{error}</pre>',
msgPendingTime: '{time} remaining',
msgCalculatingTime: 'calculating time remaining',
ajaxOperations: {
    deleteThumb: 'file delete',
    uploadThumb: 'file upload',
    uploadBatch: 'batch file upload',
    uploadExtra: 'form data upload'
},
dropZoneTitle: 'Drag & drop files here &hellip;',
dropZoneClickTitle: '<br>(or click to select {files})',
previewZoomButtonTitles: {
    prev: 'View previous file',
    next: 'View next file',
    toggleheader: 'Toggle header',
    fullscreen: 'Toggle full screen',
    borderless: 'Toggle borderless mode',
    close: 'Close detailed preview'
}
};

$.fn.fileinput.Constructor = FileInput;

/**
     * Convert automatically file inputs with class 'file' into a bootstrap fileinput control.
     */
$(document).ready(function () {
    var $input = $('input.file[type=file]');
if ($input.length) {
    $input.fileinput();
}
});
}));